156 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.365 

the certificate holder of the responsi-
bility specified in paragraph (a) of this 
section. 

[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as 
amended by Amdt. 121–106, 38 FR 22378, Aug. 
20, 1973] 

§ 121.365 Maintenance, preventive 

maintenance, and alteration organi-

zation. 

(a) Each certificate holder that per-

forms any of its maintenance (other 
than required inspections), preventive 
maintenance, or alterations, and each 
person with whom it arranges for the 
performance of that work must have an 
organization adequate to perform the 
work. 

(b) Each certificate holder that per-

forms any inspections required by its 
manual in accordance with 
§ 121.369(b)(2) or (3) (in this subpart re-
ferred to as 

required inspections

) and 

each person with whom it arranges for 
the performance of that work must 
have an organization adequate to per-
form that work. 

(c) Each person performing required 

inspections in addition to other main-
tenance, preventive maintenance, or 
alterations, shall organize the perform-
ance of those functions so as to sepa-
rate the required inspection functions 
from the other maintenance, preven-
tive maintenance, and alteration func-
tions. The separation shall be below 
the level of administrative control at 
which overall responsibility for the re-
quired inspection functions and other 
maintenance, preventive maintenance, 
and alteration functions are exercised. 

[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as 
amended by Amdt. 121–3, 30 FR 3639, Mar. 19, 
1965] 

§ 121.367 Maintenance, preventive 

maintenance, and alterations pro-

grams. 

Each certificate holder shall have an 

inspection program and a program cov-
ering other maintenance, preventive 
maintenance, and alterations that en-
sures that— 

(a) Maintenance, preventive mainte-

nance, and alterations performed by it, 
or by other persons, are performed in 
accordance with the certificate hold-
er’s manual; 

(b) Competent personnel and ade-

quate facilities and equipment are pro-
vided for the proper performance of 
maintenance, preventive maintenance, 
and alterations; and 

(c) Each aircraft released to service 

is airworthy and has been properly 
maintained for operation under this 
part. 

[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as 
amended by Amdt. 121–100, 37 FR 28053, Dec. 
20, 1972] 

§ 121.368 Contract maintenance. 

(a) A certificate holder may arrange 

with another person for the perform-
ance of maintenance, preventive main-
tenance, and alterations as authorized 
in § 121.379(a) only if the certificate 
holder has met all the requirements in 
this section. For purposes of this sec-
tion— 

(1) A 

maintenance provider 

is any per-

son who performs maintenance, preven-
tive maintenance, or an alteration for 
a certificate holder other than a person 
who is trained by and employed di-
rectly by that certificate holder. 

(2) 

Covered work 

means any of the fol-

lowing: 

(i) Essential maintenance that could 

result in a failure, malfunction, or de-
fect endangering the safe operation of 
an aircraft if not performed properly or 
if improper parts or materials are used; 

(ii) Regularly scheduled mainte-

nance; or 

(iii) A required inspection item on an 

aircraft. 

(3) 

Directly in charge 

means having re-

sponsibility for covered work per-
formed by a maintenance provider. A 
representative of the certificate holder 
directly in charge of covered work does 
not need to physically observe and di-
rect each maintenance provider con-
stantly, but must be available for con-
sultation on matters requiring instruc-
tion or decision. 

(b) Each certificate holder must be 

directly in charge of all covered work 
done for it by a maintenance provider. 

(c) Each maintenance provider must 

perform all covered work in accordance 
with the certificate holder’s mainte-
nance manual. 

(d) No maintenance provider may 

perform covered work unless that work