200 

14 CFR Ch. I (1–1–19 Edition) 

§ 121.551 

and permitted to occupy an observer 
seat thereon. 

[Doc. No. 9031, 35 FR 12061, July 28, 1970, as 
amended by Amdt. 121–253, 61 FR 2613, Jan. 
26, 1996] 

§ 121.551

Restriction or suspension of 

operation: Domestic and flag oper-
ations. 

When a certificate holder conducting 

domestic or flag operations knows of 
conditions, including airport and run-
way conditions, that are a hazard to 
safe operations, it shall restrict or sus-
pend operations until those conditions 
are corrected. 

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

§ 121.553

Restriction or suspension of 

operation: Supplemental oper-
ations. 

When a certificate holder conducting 

supplemental operations or pilot in 
command knows of conditions, includ-
ing airport and runway conditions, 
that are a hazard to safe operations, 
the certificate holder or pilot in com-
mand, as the case may be, shall re-
strict or suspend operations until those 
conditions are corrected. 

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

§ 121.555

Compliance with approved 

routes and limitations: Domestic 
and flag operations. 

No pilot may operate an airplane in 

scheduled air transportation— 

(a) Over any route or route segment 

unless it is specified in the certificate 
holder’s operations specifications; or 

(b) Other than in accordance with the 

limitations in the operations specifica-
tions. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2614, Jan. 
26, 1996] 

§ 121.557

Emergencies: Domestic and 

flag operations. 

(a) In an emergency situation that 

requires immediate decision and action 
the pilot in command may take any ac-
tion that he considers necessary under 
the circumstances. In such a case he 
may deviate from prescribed oper-
ations procedures and methods, weath-
er minimums, and this chapter, to the 

extent required in the interests of safe-
ty. 

(b) In an emergency situation arising 

during flight that requires immediate 
decision and action by an aircraft dis-
patcher, and that is known to him, the 
aircraft dispatcher shall advise the 
pilot in command of the emergency, 
shall ascertain the decision of the pilot 
in command, and shall have the deci-
sion recorded. If the aircraft dispatcher 
cannot communicate with the pilot, he 
shall declare an emergency and take 
any action that he considers necessary 
under the circumstances. 

(c) Whenever a pilot in command or 

dispatcher exercises emergency author-
ity, he shall keep the appropriate ATC 
facility and dispatch centers fully in-
formed of the progress of the flight. 
The person declaring the emergency 
shall send a written report of any devi-
ation through the certificate holder’s 
operations manager, to the Adminis-
trator. A dispatcher shall send his re-
port within 10 days after the date of 
the emergency, and a pilot in command 
shall send his report within 10 days 
after returning to his home base. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2614, Jan. 
26, 1996] 

§ 121.559

Emergencies: Supplemental 

operations. 

(a) In an emergency situation that 

requires immediate decision and ac-
tion, the pilot in command may take 
any action that he considers necessary 
under the circumstances. In such a 
case, he may deviate from prescribed 
operations, procedures and methods, 
weather minimums, and this chapter, 
to the extent required in the interests 
of safety. 

(b) In an emergency situation arising 

during flight that requires immediate 
decision and action by appropriate 
management personnel in the case of 
operations conducted with a flight fol-
lowing service and which is known to 
them, those personnel shall advise the 
pilot in command of the emergency, 
shall ascertain the decision of the pilot 

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