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317 

Federal Aviation Administration, DOT 

§ 125.51 

§ 125.39

Carriage of narcotic drugs, 

marihuana, and depressant or stim-
ulant drugs or substances. 

If the holder of a certificate issued 

under this part permits any airplane 
owned or leased by that holder to be 
engaged in any operation that the cer-
tificate holder knows to be in violation 
of § 91.19(a) of this chapter, that oper-
ation is a basis for suspending or re-
voking the certificate. 

[Doc. No. 19779, 45 FR 67235, Oct. 9, 1980, as 
amended by Amdt. 125–12, 54 FR 34331, Aug. 
18, 1989] 

§ 125.41

Availability of certificate and 

operations specifications. 

Each certificate holder shall make 

its operating certificate and operations 
specifications available for inspection 
by the Administrator at its principal 
operations base. 

§ 125.43

Use of operations specifica-

tions. 

(a) Each certificate holder shall keep 

each of its employees informed of the 
provisions of its operations specifica-
tions that apply to the employee’s du-
ties and responsibilities. 

(b) Each certificate holder shall 

maintain a complete and separate set 
of its operations specifications. In ad-
dition, each certificate holder shall in-
sert pertinent excerpts of its oper-
ations specifications, or reference 
thereto, in its manual in such a man-
ner that they retain their identity as 
operations specifications. 

§ 125.45

Inspection authority. 

Each certificate holder shall allow 

the Administrator, at any time or 
place, to make any inspections or tests 
to determine its compliance with the 
Federal Aviation Act of 1958, the Fed-
eral Aviation Regulations, its oper-
ating certificate and operations speci-
fications, its letter of deviation author-
ity, or its eligibililty to continue to 
hold its certificate or its letter of devi-
ation authority. 

§ 125.47

Change of address. 

Each certificate holder shall notify 

the responsible Flight Standards office 
charged with the overall inspection of 
its operations, in writing, at least 30 
days in advance, of any change in the 

address of its principal business office, 
its principal operations base, or its 
principal maintenance base. 

[Docket No. 19779, 45 FR 67235, Oct. 9, 1980, as 
amended by Docket FAA–2018–0119, Amdt. 
125–68, 83 FR 9173, Mar. 5, 2018] 

§ 125.49

Airport requirements. 

(a) No certificate holder may use any 

airport unless it is adequate for the 
proposed operation, considering such 
items as size, surface, obstructions, 
and lighting. 

(b) No pilot of an airplane carrying 

passengers at night may take off from, 
or land on, an airport unless— 

(1) That pilot has determined the 

wind direction from an illuminated 
wind direction indicator or local 
ground communications, or, in the case 
of takeoff, that pilot’s personal obser-
vations; and 

(2) The limits of the area to be used 

for landing or takeoff are clearly 
shown by boundary or runway marker 
lights. 

(c) For the purposes of paragraph (b) 

of this section, if the area to be used 
for takeoff or landing is marked by 
flare pots or lanterns, their use must 
be approved by the Administrator. 

§ 125.51

En route navigation facilities. 

(a) Except as provided in paragraph 

(b) of this section, no certificate holder 
may conduct any operation over a 
route (including to any destination, re-
fueling or alternate airports) unless 
suitable navigation aids are available 
over the route to navigate the airplane 
along the route within the degree of ac-
curacy required for ATC. Navigation 
aids required for routes outside of con-
trolled airspace are listed in the cer-
tificate holder’s operations specifica-
tions except for those aids required for 
routes to alternate airports. 

(b) Navigation aids are not required 

for any of the following operations— 

(1) Day VFR operations that the cer-

tificate holder shows can be conducted 
safely by pilotage because of the char-
acteristics of the terrain; 

(2) Night VFR operations on routes 

that the certificate holder shows have 
reliably lighted landmarks adequate 
for safe operations; and 

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