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This Subpart prescribes rules for maintenance of each aircraft operated under this Part.
(a) Subject to paragraph (b), a holder of an air operator certificate must identify in the maintenance programme applicable to each aircraft that is operated under the authority of the certificate, whether the aircraft is subject to—
(1) an annual review of airworthiness in accordance with rule 91.615; or
(2) a maintenance review in accordance with rule 135.415.
(b) A holder of a general aviation air operator certificate whose organisational management system does not include the requirements of rule 119.124 must ensure that each aircraft that is operated under the authority of the certificate is subject to an annual review of airworthiness in accordance with rule 91.615.
(c) A holder of an air operator certificate must ensure that the maintenance on an aircraft that is subject to a maintenance review, as identified under paragraph (a)(2), is performed by—
(1) a maintenance organisation certificated under Part 145; or
(2) for maintenance that is performed in another State that is party to a technical arrangement, a maintenance organisation that is certificated or appropriately authorised by the State to perform maintenance on the aircraft type in accordance with the conditions specified in the technical arrangement.
(d) A holder of an air operator certificate must ensure that the maintenance on a helicopter that has a MCTOW of more than 5700kg or a maximum certificated passenger seating configuration, excluding any required crew member seat, of 10 seats or more that is operated under the authority of the certificate is performed by—
(1) a maintenance organisation certificated under Part 145; or
(2) for maintenance that is performed in another State that is party to a technical arrangement, a maintenance organisation that is certificated or appropriately authorised by the State to perform maintenance on the aircraft type in accordance with the conditions specified in the technical arrangement.
(a) A holder of an air operator certificate is responsible for the airworthiness of—
(1) every aircraft that is operated under the authority of the certificate; and
(2) any equipment installed in or attached to the aircraft.
(b) A holder of an air operator certificate must ensure that every aircraft that is operated under the authority of the certificate is maintained in accordance with the maintenance programme required under rule 119.63 or rule 119.111.
The holder of an air operator certificate who utilises condition monitoring as part of a maintenance programme for an aircraft must provide the Director, each month, with a maintenance reliability report that contains details of—
(1) aircraft utilisation; and
(2) pilot reports regarding aircraft airworthiness; and
(3) aircraft mechanical delays and cancellations; and
(4) unscheduled engine shutdowns; and
(5) unscheduled engine removals; and
(6) unscheduled component removals; and
(7) confirmed component failures; and
(8) incidents regarding aircraft airworthiness; and
(9) MEL usage.
(a) A holder of an air operator certificate who, under rule 135.402(a), has identified in the appropriate maintenance programme that an aircraft is to be subject to a maintenance review must ensure that—
(1) the aircraft is not operated under the authority of the certificate unless a maintenance review of the aircraft has been carried out within the previous 12 months; and
(2) each maintenance review that is carried out is certified in accordance with paragraph (d).
(b) Except as provided in paragraph (c), the holder of an air operator certificate must ensure that a maintenance review of an aircraft is not certified as having been carried out unless —
(1) the aircraft conforms to its type certificate data sheet or equivalent type data that is acceptable to the Director; and
(2) for an aircraft that is required by rule 91.509(b) to be fitted with a time-in-service recorder,—
(i) the time-in-service recorder reading is recorded in the appropriate maintenance logbook; and
(ii) the aircraft’s total time-in-service recorded in the technical log is compared with the time-in-service recorder reading; and
(iii) any discrepancy between the time-in-service figures referred to in paragraph (b)(2)(ii) is reported in accordance with rule 43.155(a)(4); and
(3) since the last maintenance review—
(i) every modification and repair has been correctly recorded and conforms to the applicable technical data listed in Appendix D of Part 21; and
(ii) due maintenance specified in the applicable maintenance programme for the aircraft has been completed within the time periods specified; and
(iii) every applicable airworthiness directive has been complied with in accordance with Part 39; and
(iv) every defect recorded in the technical log has been rectified or properly deferred in accordance with the procedures in the certificate holder’s exposition; and
(v) every applicable certification for release-to-service has been made in accordance with Subpart C of Part 43.
(c) A holder of an airline air operator certificate may certify a maintenance review of an aircraft on the basis of continuing compliance with a programme acceptable to the Director if—
(1) the programme samples every requirement of paragraph (b) during the review period; and
(2) the maintenance review is individually certified for each of the certificate holder’s aircraft that are subject to a maintenance review.
(d) The certificate holder must ensure that the person who carries out a maintenance review of an aircraft—
(1) is authorised by the certificate holder and has experience, that is at least equivalent to the experience required for the grant of an appropriate aircraft maintenance engineer licence rating, for the type of aircraft; and
(2) carries out the review in accordance with the applicable paragraph (b) or (c); and
(3) certifies that the maintenance review has been carried out by entering the following statement in the appropriate maintenance logbook with the person’s signature, authorisation number, and the date of entry:
The maintenance review of this aircraft and such of its equipment as is necessary for its continued airworthiness has been carried out in accordance with the requirements of Civil Aviation Rule 135.415.
