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14 CFR Ch. I (1–1–18 Edition) 

§ 121.137 

the manual at its principal base of op-
erations. 

[Doc. No. 6258, 29 FR 19196, Dec. 31, 1964, as 
amended by Amdt. 121–104, 38 FR 14915, June 
7, 1973; Amdt. 121–106, 38 FR 22377, Aug. 20, 
1973; Amdt. 121–143, 43 FR 22641, May 25, 1978; 
Amdt. 121–162, 45 FR 46739, July 10, 1980; 
Amdt. 121–251, 60 FR 65926, Dec. 20, 1995; 
Amdt. 121–250, 60 FR 65948, Dec. 20, 1995; 
Amdt. 121–316, 70 FR 58823, Oct. 7, 2005; Amdt. 
121–329, 72 FR 1879, Jan. 16, 2007] 

§ 121.137

Distribution and availability. 

(a) Each certificate holder shall fur-

nish copies of the manual required by 
§ 121.133 (and the changes and additions 
thereto) or appropriate parts of the 
manual to— 

(1) Its appropriate ground operations 

and maintenance personnel; 

(2) Crewmembers; and 
(3) Representatives of the Adminis-

trator assigned to it. 

(b) Each person to whom a manual or 

appropriate parts of it are furnished 
under paragraph (a) of this section 
shall keep it up-to-date with the 
changes and additions furnished to 
that person and shall have the manual 
or appropriate parts of it accessible 
when performing assigned duties. 

(c) For the purpose of complying with 

paragraph (a) of this section, a certifi-
cate holder may furnish the persons 
listed therein the maintenance part of 
the manual in printed form or other 
form, acceptable to the Administrator, 
that is retrievable in the English lan-
guage. 

[Doc. No. 6258, 29 FR 19196, Dec. 31, 1964, as 
amended by Amdt. 121–71, 35 FR 17176, Nov. 7, 
1970; Amdt. 121–162, 45 FR 46739, July 10, 1980; 
Amdt. 121–262, 62 FR 13256, Mar. 19, 1997] 

§ 121.139

Requirements for manual 

aboard aircraft: Supplemental oper-
ations. 

(a) Except is provided in paragraph 

(b) of this section, each certificate 
holder conducting supplemental oper-
ations shall carry appropriate parts of 
the manual on each airplane when 
away from the principal base of oper-
ations. The appropriate parts must be 
available for use by ground or flight 
personnel. If the certificate holder car-
ries aboard an airplane all or any por-
tion of the maintenance part of its 
manual in other than printed form, it 
must carry a compatible reading device 

that produces a legible image of the 
maintenance information and instruc-
tions or a system that is able to re-
trieve the maintenance information 
and instructions in the English lan-
guage. 

(b) If a certificate holder conducting 

supplemental operations is able to per-
form all scheduled maintenance at 
specified stations where it keeps main-
tenance parts of the manual, it does 
not have to carry those parts of the 
manual aboard the aircraft en route to 
those stations. 

[Doc. No. 6258, 29 FR 19196, Dec. 31, 1964, as 
amended by Amdt. 12–71, 35 FR 17176, Nov. 7, 
1970; Amdt. 121–253, 61 FR 2611, Jan. 26, 1996; 
Amdt. 121–262, 62 FR 13256, Mar. 19, 1997; 62 
FR 15570, Apr. 1, 1997] 

§ 121.141

Airplane flight manual. 

(a) Each certificate holder shall keep 

a current approved airplane flight man-
ual for each type of airplane that it op-
erates except for nontransport cat-
egory airplanes certificated before Jan-
uary 1, 1965. 

(b) In each airplane required to have 

an airplane flight manual in paragraph 
(a) of this section, the certificate hold-
er shall carry either the manual re-
quired by § 121.133, if it contains the in-
formation required for the applicable 
flight manual and this information is 
clearly identified as flight manual re-
quirements, or an approved Airplane 
Manual. If the certificate holder elects 
to carry the manual required by 
§ 121.133, the certificate holder may re-
vise the operating procedures sections 
and modify the presentation of per-
formance data from the applicable 
flight manual if the revised operating 
procedures and modified performance 
date presentation are— 

(1) Approved by the Administrator; 

and 

(2) Clearly identified as airplane 

flight manual requirements. 

[Doc. No. 28154, 60 FR 65927, Dec. 20, 1995] 

Subpart H—Aircraft Requirements 

S

OURCE

: Docket No. 6258, 29 FR 19197, Dec. 

31, 1964, unless otherwise noted. 

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