FAR Parts 105, 110, 119, 135, 137, NTSB

(a) A person authorized by the Administrator to conduct operations as a direct air carrier will be issued an Air Carrier Certificate.
(b) A person who is not authorized to conduct direct air carrier operations, but who is authorized by the Administrator to conduct operations as a U.S. commercial operator, will be issued an Operating Certificate.
(c) A person who is not authorized to conduct direct air carrier operations, but who is authorized by the Administrator to conduct operations when common carriage is not involved as an operator of U.S.-registered civil airplanes with a seat configuration of 20 or more passengers, or a maximum payload capacity of 6,000 pounds or more, will be issued an Operating Certificate.
(d) A person authorized to engage in common carriage under part 121 or part 135 of this chapter, or both, shall be issued only one certificate authorizing such common carriage, regardless of the kind of operation or the class or size of aircraft to be operated.
(e) A person authorized to engage in noncommon or private carriage under part 125 or part 135 of this chapter, or both, shall be issued only one certificate authorizing such carriage, regardless of the kind of operation or the class or size of aircraft to be operated.
(f) A person conducting operations under more than one paragraph of §§119.21, 119.23, or 119.25 shall conduct those operations in compliance with—
(1) The requirements specified in each paragraph of those sections for the kind of operation conducted under that paragraph; and
(2) The appropriate authorizations, limitations, and procedures specified in the operations specifications for each kind of operation.
(g) No person may operate as a direct air carrier or as a commercial operator without, or in violation of, an appropriate certificate and appropriate operations specifications. No person may operate as a direct air carrier or as a commercial operator in violation of any deviation or exemption authority, if issued to that person or that person’s representative.
(h) A person holding an Operating Certificate authorizing noncommon or private carriage operations shall not conduct any operations in common carriage. A person holding an Air Carrier Certificate or Operating Certificate authorizing common carriage operations shall not conduct any operations in noncommon carriage.
(i) No person may operate as a direct air carrier without holding appropriate economic authority from the Department of Transportation.
(j) A certificate holder under this part may not operate aircraft under part 121 or part 135 of this chapter in a geographical area unless its operations specifications specifically authorize the certificate holder to operate in that area.
(k) No person may advertise or otherwise offer to perform an operation subject to this part unless that person is authorized by the Federal Aviation Administration to conduct that operation.
(l) No person may operate an aircraft under this part, part 121 of this chapter, or part 135 of this chapter in violation of an air carrier operating certificate, operating certificate, or appropriate operations specifications issued under this part.
Part 119
119.7   Operations specifications.
(a) Each certificate holder’s operations specifications must contain—
(1) The authorizations, limitations, and certain procedures under which each kind of operation, if applicable, is to be conducted; and
(2) Certain other procedures under which each class and size of aircraft is to be operated.
(b) Except for operations specifications paragraphs identifying authorized kinds of operations, operations specifications are not a part of a certificate.

Part 119
119.23   Operators engaged in passenger-carrying operations, cargo operations, or both with airplanes when common carriage is not involved.
(a) Each person who conducts operations when common carriage is not involved with airplanes having a passenger-seat configuration of 20 seats or more, excluding each crewmember seat, or a payload capacity of 6,000 pounds or more, shall, unless deviation authority is issued—
(1) Comply with the certification and operations specifications requirements of part 125 of this chapter;
(2) Conduct its operations with those airplanes in accordance with the requirements of part 125 of this chapter; and
(3) Be issued operations specifications in accordance with those requirements.
(b) Each person who conducts noncommon carriage (except as provided in §91.501(b) of this chapter) or private carriage operations for compensation or hire with airplanes having a passenger-seat configuration of less than 20 seats, excluding each crewmember seat, and a payload capacity of less than 6,000 pounds shall—
(1) Comply with the certification and operations specifications requirements in subpart C of this part;
(2) Conduct those operations in accordance with the requirements of part 135 of this chapter, except for those requirements applicable only to commuter operations; and
(3) Be issued operations specifications in accordance with those requirements.

Part 135
135.1   Applicability.
Link to an amendment published at 79 FR 9973, Feb. 21, 2014.
This amendment was delayed until Apr. 22, 2015 at 79 FR 22009, Apr. 21, 2014.
(a) This part prescribes rules governing—
(1) The commuter or on-demand operations of each person who holds or is required to hold an Air Carrier Certificate or Operating Certificate under part 119 of this chapter.
(2) Each person employed or used by a certificate holder conducting operations under this part including the maintenance, preventative maintenance and alteration of an aircraft.
(3) The transportation of mail by aircraft conducted under a postal service contract awarded under 39 U.S.C. 5402c.
(4) Each person who applies for provisional approval of an Advanced Qualification Program curriculum, curriculum segment, or port
ion of a curriculum segment under subpart Y of part 121 of this chapter of 14 CFR part 121 and each person employed or used by an air carrier or commercial operator under this part to perform training, qualification, or evaluation functions under an Advanced Qualification Program under subpart Y of part 121 of this chapter of 14 CFR part 121.
(5) Nonstop Commercial Air Tour flights conducted for compensation or hire in accordance with §119.1(e)(2) of this chapter that begin and end at the same airport and are conducted within a 25-statute-mile radius of that airport; provided further that these operations must comply only with the drug and alcohol testing requirements in §§120.31, 120.33, 120.35, 120.37, and 120.39 of this chapter; and with the provisions of part 136, subpart A, and §91.147 of this chapter by September 11, 2007.
(6) Each person who is on board an aircraft being operated under this part.
(7) Each person who is an applicant for an Air Carrier Certificate or an Operating Certificate under 119 of this chapter, when conducting proving tests.
(8) Commercial Air tours conducted by holders of operations specifications issued under this part must comply with the provisions of part 136, Subpart A of this chapter by September 11, 2007.
(b) [Reserved] (c) An operator who does not hold a part 119 certificate and who operates under the provisions of §91.147 of this chapter is permitted to use a person who is otherwise authorized to perform aircraft maintenance or preventive maintenance duties and who is not subject to anti-drug and alcohol misuse prevent programs to perform—
(1) Aircraft maintenance or preventive maintenance on the operator’s aircraft if the operator would otherwise be required to transport the aircraft more than 50 nautical miles further than the repair point closest to operator’s principal place of operation to obtain these services; or
(2) Emergency repairs on the operator’s aircraft if the aircraft cannot be safely operated to a location where an employee subject to FAA-approved programs can perform the repairs.

Part 135
135.4   Applicability of rules for eligible on-demand operations.
(a) An “eligible on-demand operation” is an on-demand operation conducted under this part that meets the following requirements:
(1) Two-pilot crew. The flightcrew must consist of at least two qualified pilots employed or contracted by the certificate holder.
(2) Flight crew experience. The crewmembers must have met the applicable requirements of part 61 of this chapter and have the following experience and ratings:
(i) Total flight time for all pilots:
(A) Pilot in command—A minimum of 1,500 hours.
(B) Second in command—A minimum of 500 hours.
(ii) For multi-engine turbine-powered fixed-wing and powered-lift aircraft, the following FAA certification and ratings requirements:
(A) Pilot in command—Airline transport pilot and applicable type ratings.
(B) Second in command—Commercial pilot and instrument ratings.
(iii) For all other aircraft, the following FAA certification and rating requirements:
(A) Pilot in command—Commercial pilot and instrument ratings.
(B) Second in command—Commercial pilot and instrument ratings.
(3) Pilot operating limitations. If the second in command of a fixed-wing aircraft has fewer than 100 hours of flight time as second in command flying in the aircraft make and model and, if a type rating is required, in the type aircraft being flown, and the pilot in command is not an appropriately qualified check pilot, the pilot in command shall make all takeoffs and landings in any of the following situations:
(i) Landings at the destination airport when a Destination Airport Analysis is required by §135.385(f); and
(ii) In any of the following conditions:
(A) The prevailing visibility for the airport is at or below 3/4 mile.
(B) The runway visual range for the runway to be used is at or below 4,000 feet.
(C) The runway to be used has water, snow, slush, ice, or similar contamination that may adversely affect aircraft performance.
(D) The braking action on the runway to be used is reported to be less than “good.”
(E) The crosswind component for the runway to be used is in excess of 15 knots.
(F) Windshear is reported in the vicinity of the airport.
(G) Any other condition in which the pilot in command determines it to be prudent to exercise the pilot in command’s authority.

Part 135
(4) Crew pairing. Either the pilot in command or the second in command must have at least 75 hours of flight time in that aircraft make or model and, if a type rating is required, for that type aircraft, either as pilot in command or second in command.
(b) The Administrator may authorize deviations from paragraphs (a)(2)(i) or (a)(4) of this section if the Flight Standards District Office that issued the certificate holder’s operations specifications finds that the crewmember has comparable experience, and can effectively perform the functions associated with the position in accordance with the requirements of this chapter. The Administrator may, at any time, terminate any grant of deviation authority issued under this paragraph. Grants of deviation under this paragraph may be granted after consideration of the size and scope of the operation, the qualifications of the intended personnel and the following circumstances:
(1) A newly authorized certificate holder does not employ any pilots who meet the minimum requirements of paragraphs (a)(2)(i) or (a)(4) of this section.
(2) An existing certificate holder adds to its fleet a new category and class aircraft not used before in its operation.
(3) An existing certificate holder establishes a new base to which it assigns pilots who will be required to become qualified on the aircraft operated from that base.
(c) An eligible on-demand operation may comply with alternative requirements specified in §§135.225(b), 135.385(f), and 135.387(b) instead of the requirements that apply to other on-demand operations.

Part 135
135.21   Manual requirements.
(a) Each certificate holder, other than one who uses only one pilot in the certificate holder’s operations, shall prepare and keep current a manual setting forth the certificate holder’s procedures and policies acceptable to the Administrator. This manual must be used by the certificate holder’s flight, ground, and maintenance personnel in conducting its operations. However, the Administrator may authorize a deviation from this paragraph if the Administrator finds that, because of the limited size of the operation, all or part of the manual is not necessary for guidance of flight, ground, or maintenance personnel.

Part 135
135.85   Carriage of persons without compliance with the passenger-carrying provisions of this part.
The following persons may be carried aboard an aircraft without complying with the passenger-carrying requirements of this part:
(a) A crewmember or other employee of the certificate holder.
(b) A person necessary for the safe handling of animals on the aircraft.
(c) A person necessary for the safe handling of hazardous materials (as defined in subchapter C of title 49 CFR).
(d) A person performing duty as a security or honor guard accompanying a shipment made by or under the authority of the U.S. Government.
(e) A military courier or a military route supervisor carried by a military cargo contract air carrier or commercial operator in operations under a military cargo contract, if that carriage is specifically authorized by the appropriate military service.
(f) An authorized representative of the Administrator conducting an en route inspection.
(g) A person, authorized by the Administrator, who is performing a duty connected with a cargo operation of the certificate holder.
(h) A DOD commercial air carrier evaluator conducting an en route evaluation.

Part 135
135.87   Carriage of cargo including carry-on baggage.
No person may carry cargo, including carry-on baggage, in or on any aircraft unless—
(a) It is carried in an approved cargo rack, bin, or compartment installed in or on the aircraft;
(b) It is secured by an approved means; or
(c) It is carried in accordance with each of the following:
(1) For cargo, it is properly secured by a safety belt or other tie-down having enough strength to eliminate the possibility of shifting under all normally anticipated flight and ground conditions, or for carry-on baggage, it is restrained so as to prevent its movement during air turbulence.
(2) It is packaged or covered to avoid possible injury to occupants.
(3) It does not impose any load on seats or on the floor structure that exceeds the load limitation for those components.
(4) It is not located in a position that obstructs the access to, or use of, any required emergency or regular exit, or the use of the aisle between the crew and the passenger compartment, or located in a position that obscures any passenger’s view of the “seat belt” sign, “no smoking” sign, or any required exit sign, unless an auxiliary sign or other approved means for proper notification of the passengers is provided.
(5) It is not carried directly above seated occupants.
(6) It is stowed in compliance with this section for takeoff and landing.
(7) For cargo only operations, paragraph (c)(4) of this section does not apply if the cargo is loaded so that at least one emergency or regular exit is available to provide all occupants of the aircraft a means of unobstructed exit from the aircraft if an emergency occurs.
(d) Each passenger seat under which baggage is stowed shall be fitted with a means to prevent articles of baggage stowed under it from sliding under crash impacts severe enough to induce the ultimate inertia forces specified in the emergency landing condition regulations under which the aircraft was type certificated.
(e) When cargo is carried in cargo compartments that are designed to require the physical entry of a crewmember to extinguish any fire that may occur during flight, the cargo must be loaded so as to allow a crewmember to effectively reach all parts of the compartment with the contents of a hand fire extinguisher.

Part 135
135.98   Operations in the North Polar Area.
After August 13, 2008, no certificate holder may operate an aircraft in the region north of 78° N latitude (“North Polar Area”), other than intrastate operations wholly within the state of Alaska, unless authorized by the FAA. The certificate holder’s operation specifications must include the following:
(a) The designation of airports that may be used for en-route diversions and the requirements the airports must meet at the time of diversion.
(b) Except for all-cargo operations, a recovery plan for passengers at designated diversion airports.
(c) A fuel-freeze strategy and procedures for monitoring fuel freezing for operations in the North Polar Area.
(d) A plan to ensure communication capability for operations in the North Polar Area.
(e) An MEL for operations in the North Polar Area.
(f) A training plan for operations in the North Polar Area.
(g) A plan for mitigating crew exposure to radiation during solar flare activity.
(h) A plan for providing at least two cold weather anti-exposure suits in the aircraft, to protect crewmembers during outside activity at a diversion airport with extreme climatic conditions. The FAA may relieve the certificate holder from this requirement if the season of the year makes the equipment unnecessary.

Part 135
135.100   Flight crewmember duties.
(a) No certificate holder shall require, nor may any flight crewmember perform, any duties during a critical phase of flight except those duties required for the safe operation of the aircraft. Duties such as company required calls made for such nonsafety related purposes as ordering galley supplies and confirming passenger connections, announcements made to passengers promoting the air carrier or pointing out sights of interest, and filling out company payroll and related records are not required for the safe operation of the aircraft.
(b) No flight crewmember may engage in, nor may any pilot in command permit, any activity during a critical phase of flight which could distract any flight crewmember from the performance of his or her duties or which could interfere in any way with the proper conduct of those duties. Activities such as eating meals, engaging in nonessential conversations within the cockpit and nonessential communications between the cabin and cockpit crews, and reading publications not related to the proper conduct of the flight are not required for the safe operation of the aircraft.
(c) For the purposes of this section, critical phases of flight includes all ground operations involving taxi, takeoff and landing, and all other flight operations conducted below 10,000 feet, except cruise flight.
Note: Taxi is defined as “movement of an airplane under its own power on the surface of an airport.”

Part 135
135.101   Second in command required under IFR.
Except as provided in §135.105, no person may operate an aircraft carrying passengers under IFR unless there is a second in command in the aircraft.

Part 135
135.105   Exception to second in command requirement: Approval for use of autopilot system.
(a) Except as provided in §§135.99 and 135.111, unless two pilots are required by this chapter for operations under VFR, a person may operate an aircraft without a second in command, if it is equipped with an operative approved autopilot system and the use of that system is authorized by appropriate operations specifications. No certificate holder may use any person, nor may any person serve, as a pilot in command under this section of an aircraft operated in a commuter operation, as defined in part 119 of this chapter unless that person has at least 100 hours pilot in command flight time in the make and model of aircraft to be flown and has met all other applicable requirements of this part.
(b) The certificate holder may apply for an amendment of its operations specifications to authorize the use of an autopilot system in place of a second in command.
(c) The Administrator issues an amendment to the operations specifications authorizing the use of an autopilot system, in place of a second in command, if—
(1) The autopilot is capable of operating the aircraft controls to maintain flight and maneuver it about the three axes; and
(2) The certificate holder shows, to the satisfaction of the Administrator, that operations using the autopilot system can be conducted safely and in compliance with this part.
The amendment contains any conditions or limitations on the use of the autopilot system that the Administrator determines are needed in the interest of safety.

Part 135
135.107   Flight attendant crewmember requirement.
No certificate holder may operate an aircraft that has a passenger seating configuration, excluding any pilot seat, of more than 19 unless there is a flight attendant crewmember on board the aircraft.

Part 135
135.109   Pilot in command or second in command: Designation required.
(a) Each certificate holder shall designate a—
(1) Pilot in command for each flight; and
(2) Second in command for each flight requiring two pilots.
(b) The pilot in command, as designated by the certificate holder, shall remain the pilot in command at all times during that flight.
135.111   Second in command required in Category II operations.
No person may operate an aircraft in a Category II operation unless there is a second in command of the aircraft.

Part 135
135.113   Passenger occupancy of pilot seat.
No certificate holder may operate an aircraft type certificated
after October 15, 1971, that has a passenger seating configuration, excluding any pilot seat, of more than eight seats if any person other than the pilot in command, a second in command, a company check airman, or an authorized representative of the Administrator, the National Transportation Safety Board, or the United States Postal Service occupies a pilot seat.
135.115   Manipulation of controls.
No pilot in command may allow any person to manipulate the flight controls of an aircraft during flight conducted under this part, nor may any person manipulate the controls during such flight unless that person is—
(a) A pilot employed by the certificate holder and qualified in the aircraft; or
(b) An authorized safety representative of the Administrator who has the permission of the pilot in command, is qualified in the aircraft, and is checking flight operations.

Part 135
135.117   Briefing of passengers before flight.
Link to an amendment published at 79 FR 9973, Feb. 21, 2014.
This amendment was delayed until Apr. 22, 2015 at 79 FR 22009, Apr. 21, 2014.
(a) Before each takeoff each pilot in command of an aircraft carrying passengers shall ensure that all passengers have been orally briefed on—
(1) Smoking. Each passenger shall be briefed on when, where, and under what conditions smoking is prohibited (including, but not limited to, any applicable requirements of part 252 of this title). This briefing shall include a statement that the Federal Aviation Regulations require passenger compliance with the lighted passenger information signs (if such signs are required), posted placards, areas designated for safety purposes as no smoking areas, and crewmember instructions with regard to these items. The briefing shall also include a statement (if the aircraft is equipped with a lavatory) that Federal law prohibits: tampering with, disabling, or destroying any smoke detector installed in an aircraft lavatory; smoking in lavatories; and, when applicable, smoking in passenger compartments.
(2) The use of safety belts, including instructions on how to fasten and unfasten the safety belts. Each passenger shall be briefed on when, where, and under what conditions the safety belt must be fastened about that passenger. This briefing shall include a statement that the Federal Aviation Regulations require passenger compliance with lighted passenger information signs and crewmember instructions concerning the use of safety belts.
(3) The placement of seat backs in an upright position before takeoff and landing;
(4) Location and means for opening the passenger entry door and emergency exits;
(5) Location of survival equipment;
(6) If the flight involves extended overwater operation, ditching procedures and the use of required flotation equipment;
(7) If the flight involves operations above 12,000 feet MSL, the normal and emergency use of oxygen; and
(8) Location and operation of fire extinguishers.

(b) Before each takeoff the pilot in command shall ensure that each person who may need the assistance of another person to move expeditiously to an exit if an emergency occurs and that person’s attendant, if any, has received a briefing as to the procedures to be followed if an evacuation occurs. This paragraph does not apply to a person who has been given a briefing before a previous leg of a flight in the same aircraft.
(c) The oral briefing required by paragraph (a) of this section shall be given by the pilot in command or a crewmember.
(d) Notwithstanding the provisions of paragraph (c) of this section, for aircraft certificated to carry 19 passengers or less, the oral briefing required by paragraph (a) of this section shall be given by the pilot in command, a crewmember, or other qualified person designated by the certificate holder and approved by the Administrator.
(e) The oral briefing required by paragraph (a) of this section must be supplemented by printed cards which must be carried in the aircraft in locations convenient for the use of each passenger. The cards must—
(1) Be appropriate for the aircraft on which they are to be used;
(2) Contain a diagram of, and method of operating, the emergency exits;
(3) Contain other instructions necessary for the use of emergency equipment on board the aircraft; and
(4) No later than June 12, 2005, for scheduled Commuter passenger-carrying flights, include the sentence, “Final assembly of this aircraft was completed in [INSERT NAME OF COUNTRY].”
(f) The briefing required by paragraph (a) may be delivered by means of an approved recording playback device that is audible to each passenger under normal noise levels.

Part 135
135.119   Prohibition against carriage of weapons.
No person may, while on board an aircraft being operated by a certificate holder, carry on or about that person a deadly or dangerous weapon, either concealed or unconcealed. This section does not apply to—
(a) Officials or employees of a municipality or a State, or of the United States, who are authorized to carry arms; or
(b) Crewmembers and other persons authorized by the certificate holder to carry arms.
135.123   Emergency and emergency evacuation duties.
(a) Each certificate holder shall assign to each required crewmember for each type of aircraft as appropriate, the necessary functions to be performed in an emergency or in a situation requiring emergency evacuation. The certificate holder shall ensure that those functions can be practicably accomplished, and will meet any reasonably anticipated emergency including incapacitation of individual crewmembers or their inability to reach the passenger cabin because of shifting cargo in combination cargo-passenger aircraft.
(b) The certificate holder shall describe in the manual required under §135.21 the functions of each category of required crewmembers assigned under paragraph (a) of this section.

Part 135
135.243   Pilot in command qualifications.
(a) No certificate holder may use a person, nor may any person serve, as pilot in command in passenger-carrying operations—
(1) Of a turbojet airplane, of an airplane having a passenger-seat configuration, excluding each crewmember seat, of 10 seats or more, or of a multiengine airplane in a commuter operation as defined in part 119 of this chapter, unless that person holds an airline transport pilot certificate with appropriate category and class ratings and, if required, an appropriate type rating for that airplane.
(2) Of a helicopter in a scheduled interstate air transportation operation by an air carrier within the 48 contiguous states unless that person holds an airline transport pilot certificate, appropriate type ratings, and an instrument rating.
(b) Except as provided in paragraph (a) of this section, no certificate holder may use a person, nor may any person serve, as pilot in command of an aircraft under VFR unless that person—
(1) Holds at least a commercial pilot certificate with appropriate category and class ratings and, if required, an appropriate type rating for that aircraft; and
(2) Has had at least 500 hours time as a pilot, including at least 100 hours of cross-country flight time, at least 25 hours of which were at night; and
(3) For an airplane, holds an instrument rating or an airline transport pilot certificate with an airplane category rating; or
(4) For helicopter operations conducted VFR over-the-top, holds a helicopter instrument rating, or an airline transport pilot certificate with a category and class rating for that aircraft, not limited to VFR.
(c) Except as provided in paragraph (a) of this section, no certificate holder may use a person, nor may any person serve, as pilot in command of an aircraft under IFR unless that person—
(1) Holds at least a commercial pilot certificate with appropriate category and class ratings and, if required, an appropriate type rating for that aircraft; and
(2) Has had at least 1,200 hours of flight time as a pilot, including 500 hours of cross country flight time, 100 hours of night flight time, and 75 hours of actual or simulated instrument time at least 50 hours of which were in actual flight; and
(3) For an airplane, holds an instrument rating or an airline transport pilot certificate with an airplane category rating; or
(4) For a helicopter, holds a helicopter instrument rating, or an airline transport pilot certificate with a category and class rating for that aircraft, not limited to VFR.

(d) Paragraph (b)(3) of this section does not apply when—
(1) The aircraft used is a single reciprocating-engine-powered airplane;
(2) The certificate holder does not conduct any operation pursuant to a published flight schedule which specifies five or more round trips a week between two or more points and places between which the round trips are performed, and does not transport mail by air under a contract or contracts with the United States Postal Service having total amount estimated at the beginning of any semiannual reporting period (January 1-June 30; July 1-December 31) to be in excess of $20,000 over the 12 months commencing with the beginning of the reporting period;
(3) The area, as specified in the certificate holder’s operations specifications, is an isolated area, as determined by the Flight Standards district office, if it is shown that—
(i) The primary means of navigation in the area is by pilotage, since radio navigational aids are largely ineffective; and
(ii) The primary means of transportation in the area is by air;
(4) Each flight is conducted under day VFR with a ceiling of not less than 1,000 feet and visibility not less than 3 statute miles;
(5) Weather reports or forecasts, or any combination of them, indicate that for the period commencing with the planned departure and ending 30 minutes after the planned arrival at the destination the flight may be conducted under VFR with a ceiling of not less than 1,000 feet and visibility of not less than 3 statute miles, except that if weather reports and forecasts are not available, the pilot in command may use that pilot’s observations or those of other persons competent to supply weather observations if those observations indicate the flight may be conducted under VFR with the ceiling and visibility required in this paragraph;
(6) The distance of each flight from the certificate holder’s base of operation to destination does not exceed 250 nautical miles for a pilot who holds a commercial pilot certificate with an airplane rating without an instrument rating, provided the pilot’s certificate does not contain any limitation to the contrary; and
(7) The areas to be flown are approved by the certificate-holding FAA Flight Standards district office and are listed in the certificate holder’s operations specifications.

Part 135
135.244   Operating experience.
(a) No certificate holder may use any person, nor may any person serve, as a pilot in command of an aircraft operated in a commuter operation, as defined in part 119 of this chapter unless that person has completed, prior to designation as pilot in command, on that make and basic model aircraft and in that crewmember position, the following operating experience in each make and basic model of aircraft to be flown:
(1) Aircraft, single engine—10 hours.
(2) Aircraft multiengine, reciprocating engine-powered—15 hours.
(3) Aircraft multiengine, turbine engine-powered—20 hours.
(4) Airplane, turbojet-powered—25 hours.
(b) In acquiring the operating experience, each person must comply with the following:
(1) The operating experience must be acquired after satisfactory completion of the appropriate ground and flight training for the aircraft and crewmember position. Approved provisions for the operating experience must be included in the certificate holder’s training program.
(2) The experience must be acquired in flight during commuter passenger-carrying operations under this part. However, in the case of an aircraft not previously used by the certificate holder in operations under this part, operating experience acquired in the aircraft during proving flights or ferry flights may be used to meet this requirement.
(3) Each person must acquire the operating experience while performing the duties of a pilot in command under the supervision of a qualified check pilot.
(4) The hours of operating experience may be reduced to not less than 50 percent of the hours required by this section by the substitution of one additional takeoff and landing for each hour of flight.

Part 135
135.245   Second in command qualifications.
(a) Except as provided in paragraph (b), no certificate holder may use any person, nor may any person serve, as second in command of an aircraft unless that person holds at least a commercial pilot certificate with appropriate category and class ratings and an instrument rating. For flight under IFR, that person must meet the recent instrument experience requirements of part 61 of this chapter.
(b) A second in command of a helicopter operated under VFR, other than over-the-top, must have at least a commercial pilot certificate with an appropriate aircraft category and class rating

Part 135
135.321   Applicability and terms used.
(a) Except as provided in §135.3, this subpart prescribes the requirements applicable to—
(1) A certificate holder under this part which contracts with, or otherwise arranges to use the services of a training center certificated under part 142 to perform training, testing, and checking functions;
(2) Each certificate holder for establishing and maintaining an approved training program for crewmembers, check airmen and instructors, and other operations personnel employed or used by that certificate holder; and
(3) Each certificate holder for the qualification, approval, and use of aircraft simulators and flight training devices in the conduct of the program.
(b) For the purposes of this subpart, the following terms and definitions apply:
(1) Initial training. The training required for crewmembers who have not qualified and served in the same capacity on an aircraft.
(2) Transition training. The training required for crewmembers who have qualified and served in the same capacity on another aircraft.
(3) Upgrade training. The training required for crewmembers who have qualified and served as second in command on a particular aircraft type, before they serve as pilot in command on that aircraft.
(4) Differences training. The training required for crewmembers who have qualified and served on a particular type aircraft, when the Administrator finds differences training is necessary before a crewmember serves in the same capacity on a particular variation of that aircraft.
(5) Recurrent training. The training required for crewmembers to remain adequately trained and currently proficient for each aircraft, crewmember position, and type of operation in which the crewmember serves.
(6) In flight. The maneuvers, procedures, or functions that must be conducted in the aircraft.
(7) Training center. An organization governed by the applicable requirements of part 142 of this chapter that conducts training, testing, and checking under contract or other arrangement to certificate holders subject to the requirements of this part.
(8) Requalification training. The training required for crewmembers previously trained and qualified, but who have become unqualified due to not having met within the required period the—
(i) Recurrent pilot testing requirements of §135.293;
(ii) Instrument proficiency check requirements of §135.297; or
(iii) Line checks required by §135.299.

Part 137
137.3   Definition of terms.
For the purposes of this part—
Agricultural aircraft operation means the operation of an aircraft for th
e purpose of (1) dispensing any economic poison, (2) dispensing any other substance intended for plant nourishment, soil treatment, propagation of plant life, or pest control, or (3) engaging in dispensing activities directly affecting agriculture, horticulture, or forest preservation, but not including the dispensing of live insects.
Economic poison means (1) any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any insects, rodents, nematodes, fungi, weeds, and other forms of plant or animal life or viruses, except viruses on or in living man or other animals, which the Secretary of Agriculture shall declare to be a pest, and (2) any substance or mixture of substances intended for use as a plant regulator, defoliant or desiccant.

Part 137
137.45   Nonobservance of airport traffic pattern.
Notwithstanding part 91 of this chapter, the pilot in command of an aircraft may deviate from an airport traffic pattern when authorized by the control tower concerned. At an airport without a functioning control tower, the pilot in command may deviate from the traffic pattern if—
(a) Prior coordination is made with the airport management concerned;
(b) Deviations are limited to the agricultural aircraft operation;
(c) Except in an emergency, landing and takeoffs are not made on ramps, taxiways, or other areas of the airport not intended for such use; and
(d) The aircraft at all times remains clear of, and gives way to, aircraft conforming to the traffic pattern for the airport.

NTSB Part 830
830.5 Immediate notification.
The operator of any civil aircraft, or any public aircraft not operated by the Armed Forces or an intelligence agency of the United States, or any foreign aircraft shall immediately, and by the most expeditious means available, notify the nearest National Transportation Safety Board (Board) field office 1 when:
(a) An aircraft accident or any of the following listed incidents occur:
(1) Flight control system malfunction or failure;
(2) Inability of any required flight crewmember to perform normal flight duties as a result of injury or illness;
(3) Failure of structural components of a turbine engine excluding compressor and turbine blades and vanes;
(4) In-flight fire; or
(5) Aircraft collide in flight.
(6) Damage to property, other than the aircraft, estimated to exceed $25,000 for repair (including materials and labor) or fair market value in the event of total loss, whichever is less.
(b) An aircraft is overdue and is believed to have been involved in an accident.

NTSB Part 830
830.10 Preservation of aircraft wreckage, mail, cargo, and records.
(a) The operator of an aircraft involved in an accident or incident for which notification must be given is responsible for preserving to the extent possible any aircraft wreckage, cargo, and mail aboard the aircraft, and all records, including all recording mediums of flight, maintenance, and voice recorders, pertaining to the operation and maintenance of the aircraft and to the airmen until the Board takes custody thereof or a release is granted pursuant to Sec. 831.12(b) of this chapter.
(b) Prior to the time the Board or its authorized representative takes custody of aircraft wreckage, mail, or cargo, such wreckage, mail, or cargo may not be disturbed or moved except to the extent necessary:
(1) To remove persons injured or trapped;
(2) To protect the wreckage from further damage; or
(3) To protect the public from injury.
(c) Where it is necessary to move aircraft wreckage, mail, or cargo, sketches, descriptive notes, and photographs shall be made, if possible, of the original positions and condition of the wreckage and any significant impact marks.
(d) The operator of an aircraft involved in an accident or incident shall retain all records, reports, internal documents, and memoranda dealing with the accident or incident, until authorized by the Board to the contrary.

NTSB Part 830
830.15 Reports and statements to be filed.
(a) Reports. The operator of a civil, public (as specified in Sec. 830.5), or foreign aircraft shall file a report on Board Form 6120.1/2 (OMB No. 3147-0001) 2 within 10 days after an accident, or after 7 days if an overdue aircraft is still missing. A report on an incident for which immediate notification is required by Sec. 830.5(a) shall be filed only as requested by an authorized representative of the Board.
(b) Crewmember statement. Each crewmember, if physically able at the time the report is submitted, shall attach a statement setting forth the facts, conditions, and circumstances relating to the accident or incident as they appear to him. If the crewmember is incapacitated, he shall submit the statement as soon as he is physically able.
(c) Where to file the reports. The operator of an aircraft shall file any report with the field office of the Board nearest the accident or incident.
Ntsb part 830
NTSB Notification: P-FACTIONProperty damage more than $25,000Fire, in flight AccidentCollision, in flightTurbine failureIllness of crew memberOverdue aircraftNo control: control failure of any sort