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This Subpart prescribes rules for aeroplane maintenance for each holder of an air operator certificate.
(a) A holder of an air operator certificate is responsible for the airworthiness of —
(1) every aeroplane that is operated under the authority of the certificate; and
(2) any equipment installed in or attached to the aeroplane.
(b) A holder of an air operator certificate must ensure that—
(1) every aeroplane that is operated under the authority of the certificate is maintained in accordance with the maintenance programme required under rule 119.63; and
(2) the maintenance is performed by—
(i) a maintenance organisation certificated in accordance with Part 145; or
(ii) 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 holder of an air operator certificate who utilises condition monitoring as part of a maintenance programme for an aeroplane must provide the Director, each month, with a maintenance reliability report that contains details of—
(1) aeroplane utilisation; and
(2) a pilot report regarding aeroplane airworthiness; and
(3) aeroplane mechanical delay and flight cancellation; and
(4) unscheduled engine shutdown; and
(5) unscheduled engine removal; and
(6) unscheduled component removal; and
(7) confirmed component failure; and
(8) an incident regarding aeroplane airworthiness; and
(9) MEL usage.
(a) Subject to paragraphs (b), (c), (d), and (e), a holder of an air operator certificate who is authorised to operate an aeroplane with 2 turbine powered engines on an EDTO must ensure that the maintenance programme required by rule 119.63 includes, for every aeroplane authorised for use on an EDTO—
(1) the inspection and maintenance requirements specified in the CMP or type design document for the airframe and engine combination; and
(2) an EDTO pre-departure service check that must be completed immediately before the aeroplane is dispatched on an EDTO to—
(i) verify the serviceable status of the aeroplane including every EDTO significant system; and
(ii) verify that oil levels for each engine, and APU if an APU is required for an EDTO, are within the acceptable limits; and
(3) a schedule of maintenance activities that are required to be performed on an EDTO significant system on a scheduled basis; and
(4) procedures for performing maintenance on an EDTO significant system; and
(5) procedures for performing multiple identical system maintenance; and
(6) an engine condition monitoring programme; and
(7) an engine oil consumption monitoring programme for each engine, and APU if an APU is required for an EDTO, that includes an alert procedure if any individual uplift of oil for an engine or APU exceeds the manufacturer’s recommendations; and
(8) if APU in-flight start capability is required for an EDTO, a cold soak in-flight APU start and run reliability programme; and
(9) an EDTO significant system list; and
(10) a parts control programme for ensuring—
(i) that the aeroplane continues to conform with the type certification standard; and
(ii) the proper identification of parts to maintain the airframe/engine configuration for the authorised EDTO.
(b) The schedule of maintenance activities required by paragraph (a)(3) for the maintenance of EDTO significant systems must not schedule any multiple identical system maintenance to be performed on an aeroplane during any period of scheduled maintenance except where multiple identical system maintenance—
(1) cannot be avoided; or
(2) is required for the performance of an EDTO pre-departure service check required by paragraph (a)(2).
(c) The procedures required by paragraph (a)(4) for performing maintenance on an EDTO significant system must include—
(1) a means for verifying that the aeroplane is serviceable for an EDTO after the performance of maintenance on an EDTO significant system; and
(2) if the requirements of paragraph (1) cannot be met with ground based test procedures, an EDTO verification flight.
(d) If any maintenance performed on an aeroplane that is authorised for use on an EDTO requires the disturbance of a multiple identical system, that maintenance must be performed in accordance with the multiple identical system maintenance procedures required by paragraph (a)(5).
(e) The procedures required by paragraph (a)(5) for multiple identical system maintenance must include requirements for—
(1) a separate, appropriately authorised person to perform the maintenance action on each of the identical EDTO significant systems; and
(2) another appropriately authorised person to perform an independent physical check of the maintenance performed by the person required by paragraph (e)(1); and
(3) on completion of the maintenance,—
(i) testing of the systems in accordance with the maintenance manual and any applicable modification instructions; and
(ii) ground testing to verify that the aeroplane is serviceable for EDTO; and
(iii) an EDTO verification flight to be completed if ground testing under paragraph (ii) cannot positively verify that the aeroplane is serviceable for EDTO.
(a) A holder of an air operator certificate must ensure that—
(1) an aeroplane is not operated under the authority of the certificate unless a maintenance review for the aeroplane 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 for an aeroplane is not certified as having been carried out unless, since the last maintenance review—
(1) due maintenance specified in the applicable maintenance programme for the aeroplane has been completed within the time period specified; and
(2) every applicable airworthiness directive has been complied with in accordance with the requirements prescribed in Part 39; and
(3) every defect entered in the technical log has been rectified or properly deferred in accordance with the procedures in the certificate holder’s exposition; and
(4) every applicable certification for release-to-service has been made in accordance with Subpart C of Part 43.
(c) The certificate holder may certify a maintenance review for an aeroplane 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 aeroplanes.
(d) The certificate holder must ensure that the person who carries out a maintenance review for an aeroplane—
(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 aeroplane; 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 for this aeroplane 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 121.415.
A holder of an air operator certificate who is authorised to conduct an EDTO must, before the 21st day of the following quarter, provide a summary report to the Director of the following for the preceding 3 months of EDTO:
(1) every operation and utilisation of an aeroplane authorised for use on an EDTO:
(2) every engine operation and utilisation on an aeroplane conducting an EDTO:
(3) every interruption, delay or cancellation of an EDTO due to a technical reason:
(4) every unscheduled termination or diversion from an EDTO route caused by an actual or suspected technical malfunction:
(5) IFSD rates and events:
(6) every event where there is an inability to control the engine or obtain the desired power:
(7) every event where there is a precautionary thrust reduction (except for normal troubleshooting as allowed in the flight manual):
(8) every event where there is a degraded propulsion in-flight start capability:
(9) every incident that is associated with an aeroplane authorised for use on an EDTO and is required by rule 12.55(e) to be notified to the Authority within 72 hours of the incident occurring:
(10) any system defect summary report where the EDTO significant system defect rate exceeds the alert level established by the certificate holder:
(11) every usage of a minimum equipment list for EDTO significant systems:
(12) every unscheduled removal of an EDTO significant system component from an aeroplane.
