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199 

Federal Aviation Administration, DOT 

§ 121.550 

or other departments that are not di-
rectly related to flight operations, un-
less they are eligible under paragraph 
(a)(4) of this section. 

(c) No person may admit any person 

to the flight deck unless there is a seat 
available for his use in the passenger 
compartment, except— 

(1) An FAA air carrier inspector, a 

DOD commercial air carrier evaluator, 
or authorized representative of the Ad-
ministrator or National Transpor-
tation Safety Board who is checking or 
observing flight operations; 

(2) An air traffic controller who is au-

thorized by the Administrator to ob-
serve ATC procedures; 

(3) A certificated airman employed 

by the certificate holder whose duties 
require an airman certificate; 

(4) A certificated airman employed 

by another part 119 certificate holder 
whose duties with that part 119 certifi-
cate holder require an airman certifi-
cate and who is authorized by the part 
119 certificate holder operating the air-
craft to make specific trips over a 
route; 

(5) An employee of the part 119 cer-

tificate holder operating the aircraft 
whose duty is directly related to the 
conduct or planning of flight oper-
ations or the in-flight monitoring of 
aircraft equipment or operating proce-
dures, if his presence on the flightdeck 
is necessary to perform his duties and 
he has been authorized in writing by a 
responsible supervisor, listed in the Op-
erations Manual as having that author-
ity; and 

(6) A technical representative of the 

manufacturer of the aircraft or its 
components whose duties are directly 
related to the in-flight monitoring of 
aircraft equipment or operating proce-
dures, if his presence on the flightdeck 
is necessary to perform his duties and 
he has been authorized in writing by 
the Administrator and by a responsible 
supervisor of the operations depart-
ment of the part 119 certificate holder, 
listed in the Operations Manual as hav-
ing that authority. 

[Doc. No. 6258, 29 FR 19220, Dec. 31, 1964, as 
amended by Doc. No. 8084, 32 FR 5769, Apr. 11, 
1967; Amdt. 121–253, 61 FR 2613, Jan. 26, 1996; 
Amdt. 121–288, 67 FR 2127, Jan. 15, 2002; Amdt. 
121–298, 68 FR 41217, July 10, 2003] 

§ 121.548

Aviation safety inspector’s 

credentials: Admission to pilot’s 
compartment. 

Whenever, in performing the duties 

of conducting an inspection, an inspec-
tor of the Federal Aviation Adminis-
tration presents form FAA 110A, 
‘‘Aviation Safety Inspector’s Creden-
tial,’’ to the pilot in command of an 
aircraft operated by a certificate hold-
er, the inspector must be given free and 
uninterrupted access to the pilot’s 
compartment of that aircraft. 

[Doc. No. 28154, 61 FR 2613, Jan. 26, 1996] 

§ 121.548a

DOD Commercial Air Car-

rier Evaluator’s Credential. 

Whenever, in performing the duties 

of conducting an evaluation, a DOD 
commercial air carrier evaluator pre-
sents S&A Form 110B, ‘‘DOD Commer-
cial Air Carrier Evaluator’s Creden-
tial,’’ to the pilot in command of an 
airplane operated by the certificate 
holder, the evaluator must be given 
free and uninterrupted access to the pi-
lot’s compartment of that airplane. 

[Doc. No. FAA–2003–15571, 68 FR 41217, July 
10, 2003] 

§ 121.549

Flying equipment. 

(a) The pilot in command shall en-

sure that appropriate aeronautical 
charts containing adequate informa-
tion concerning navigation aids and in-
strument approach procedures are 
aboard the aircraft for each flight. 

(b) Each crewmember shall, on each 

flight, have readily available for his 
use a flashlight that is in good working 
order. 

§ 121.550

Secret Service Agents: Admis-

sion to flight deck. 

Whenever an Agent of the Secret 

Service who is assigned the duty of 
protecting a person aboard an aircraft 
operated by a certificate holder con-
siders it necessary in the performance 
of his duty to ride on the flight deck of 
the aircraft, he must, upon request and 
presentation of his Secret Service cre-
dentials to the pilot in command of the 
aircraft, be admitted to the flight deck 

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