505 

Federal Aviation Administration, DOT 

§ 135.501 

(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. 

§ 135.501

Applicability and definitions. 

(a) This subpart prescribes the re-

quirements applicable to each certifi-
cate holder for training each crew-
member and person performing or di-
rectly supervising any of the following 
job functions involving any item for 
transport on board an aircraft: 

(1) Acceptance; 
(2) Rejection; 
(3) Handling; 
(4) Storage incidental to transport; 
(5) Packaging of company material; 

or 

(6) Loading. 
(b) 

Definitions. 

For purposes of this 

subpart, the following definitions 
apply: 

(1) 

Company material (COMAT)

—Mate-

rial owned or used by a certificate 
holder. 

(2) 

Initial hazardous materials train-

ing

—The basic training required for 

each newly hired person, or each per-
son changing job functions, who per-
forms or directly supervises any of the 
job functions specified in paragraph (a) 
of this section. 

(3) 

Recurrent hazardous materials 

training

—The training required every 

24 months for each person who has sat-
isfactorily completed the certificate 
holder’s approved initial hazardous ma-
terials training program and performs 
or directly supervises any of the job 

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