517 

Federal Aviation Administration, DOT 

§ 135.443 

the records specified in paragraph (a)(1) 
of this section shall be retained until 
the work is repeated or superseded by 
other work or for one year after the 
work is performed. 

(2) The records of the last complete 

overhaul of each airframe, engine, pro-
peller, rotor, and appliance shall be re-
tained until the work is superseded by 
work of equivalent scope and detail. 

(3) The records specified in paragraph 

(a)(2) of this section shall be retained 
and transferred with the aircraft at the 
time the aircraft is sold. 

(c) The certificate holder shall make 

all maintenance records required to be 
kept by this section available for in-
spection by the Administrator or any 
representative of the National Trans-
portation Safety Board. 

[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978; 43 
FR 49975, Oct. 26, 1978] 

§ 135.441 Transfer of maintenance 

records. 

Each certificate holder who sells a 

United States registered aircraft shall 
transfer to the purchaser, at the time 
of the sale, the following records of 
that aircraft, in plain language form or 
in coded form which provides for the 
preservation and retrieval of informa-
tion in a manner acceptable to the Ad-
ministrator: 

(a) The records specified in 

§ 135.439(a)(2). 

(b) The records specified in 

§ 135.439(a)(1) which are not included in 
the records covered by paragraph (a) of 
this section, except that the purchaser 
may allow the seller to keep physical 
custody of such records. However, cus-
tody of records by the seller does not 
relieve the purchaser of its responsi-
bility under § 135.439(c) to make the 
records available for inspection by the 
Administrator or any representative of 
the National Transportation Safety 
Board. 

§ 135.443 Airworthiness release or air-

craft maintenance log entry. 

(a) No certificate holder may operate 

an aircraft after maintenance, preven-
tive maintenance, or alterations are 
performed on the aircraft unless the 
certificate holder prepares, or causes 
the person with whom the certificate 
holder arranges for the performance of 

the maintenance, preventive mainte-
nance, or alterations, to prepare— 

(1) An airworthiness release; or 
(2) An appropriate entry in the air-

craft maintenance log. 

(b) The airworthiness release or log 

entry required by paragraph (a) of this 
section must— 

(1) Be prepared in accordance with 

the procedure in the certificate hold-
er’s manual; 

(2) Include a certification that— 
(i) The work was performed in ac-

cordance with the requirements of the 
certificate holder’s manual; 

(ii) All items required to be inspected 

were inspected by an authorized person 
who determined that the work was sat-
isfactorily completed; 

(iii) No known condition exists that 

would make the aircraft unairworthy; 
and 

(iv) So far as the work performed is 

concerned, the aircraft is in condition 
for safe operation; and 

(3) Be signed by an authorized certifi-

cated mechanic or repairman, except 
that a certificated repairman may sign 
the release or entry only for the work 
for which that person is employed and 
for which that person is certificated. 

(c) Notwithstanding paragraph (b)(3) 

of this section, after maintenance, pre-
ventive maintenance, or alterations 
performed by a repair station located 
outside the United States , the air-
worthiness release or log entry re-
quired by paragraph (a) of this section 
may be signed by a person authorized 
by that repair station. 

(d) Instead of restating each of the 

conditions of the certification required 
by paragraph (b) of this section, the 
certificate holder may state in its 
manual that the signature of an au-
thorized certificated mechanic or re-
pairman constitutes that certification. 

[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978, as 
amended by Amdt. 135–29, 53 FR 47375, Nov. 
22, 1988; Amdt. 135–82, 66 FR 41117, Aug. 6, 
2001] 

Subpart K—Hazardous Materials 

Training Program 

S

OURCE

: Docket No. FAA–2003–15085, 70 FR 

58829, Oct. 7, 2005, unless otherwise noted.