501 

Federal Aviation Administration, DOT 

§ 135.427 

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 
is carried out under the supervision 
and control of the certificate holder. 

(e) Each certificate holder who con-

tracts for maintenance, preventive 
maintenance, or alterations must de-
velop and implement policies, proce-
dures, methods, and instructions for 
the accomplishment of all contracted 
maintenance, preventive maintenance, 
and alterations. These policies, proce-
dures, methods, and instructions must 
provide for the maintenance, preven-
tive maintenance, and alterations to be 
performed in accordance with the cer-
tificate holder’s maintenance program 
and maintenance manual. 

(f) Each certificate holder who con-

tracts for maintenance, preventive 
maintenance, or alterations must en-
sure that its system for the continuing 
analysis and surveillance of the main-

tenance, preventive maintenance, and 
alterations carried out by a mainte-
nance provider, as required by 
§ 135.431(a), contains procedures for 
oversight of all contracted covered 
work. 

(g) The policies, procedures, methods, 

and instructions required by para-
graphs (e) and (f) of this section must 
be acceptable to the FAA and included 
in the certificate holder’s maintenance 
manual, as required by § 135.427(b)(10). 

(h) Each certificate holder who con-

tracts for maintenance, preventive 
maintenance, or alterations must pro-
vide to its responsible Flight Standards 
office, in a format acceptable to the 
FAA, a list that includes the name and 
physical (street) address, or addresses, 
where the work is carried out for each 
maintenance provider that performs 
work for the certificate holder, and a 
description of the type of maintenance, 
preventive maintenance, or alteration 
that is to be performed at each loca-
tion. The list must be updated with 
any changes, including additions or de-
letions, and the updated list provided 
to the FAA in a format acceptable to 
the FAA by the last day of each cal-
endar month. 

[Docket FAA–2011–1136, Amdt. 135–132, 80 FR 
11547, Mar. 4, 2015, as amended by Docket 
FAA–2018–0119, Amdt. 135–139, 83 FR 9175, 
Mar. 5, 2018] 

§ 135.427

Manual requirements. 

(a) Each certificate holder shall put 

in its manual the chart or description 
of the certificate holder’s organization 
required by § 135.423 and a list of per-
sons with whom it has arranged for the 
performance of any of its required in-
spections, other maintenance, preven-
tive maintenance, or alterations, in-
cluding a general description of that 
work. 

(b) Each certificate holder shall put 

in its manual the programs required by 
§ 135.425 that must be followed in per-
forming maintenance, preventive 
maintenance, and alterations of that 
certificate holder’s aircraft, including 
airframes, aircraft engines, propellers, 
rotors, appliances, emergency equip-
ment, and parts, and must include at 
least the following: 

(1) The method of performing routine 

and nonroutine maintenance (other 

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