Document ID: chunk:federal_register_of_legislation:F2022C01244:body:0:p13
Version: federal_register_of_legislation:F2022C01244
Segment Type: other
Provision Reference: 
Character Range: 33084–35952

product if:
(a) the program provides another means of compliance with the requirement in the ICA; or
(b) non-compliance with the requirement is supported by technical justification including data derived from an approved reliability program for the aircraft; or
(c) CASA is satisfied that non-compliance with the requirement will have no adverse effect on the continuing airworthiness of the aircraft.

2.10 One-off extension to maintenance task interval
      2.10.1 If the ICA for the aircraft or an aeronautical product provide for a one-off extension to the interval for certain maintenance in the maintenance program, the maintenance program may provide for a one-off extension to the interval in accordance with the ICA.
      2.10.2 If the ICA do not provide for a one-off extension to the interval for certain maintenance in the maintenance program, the maintenance program may provide for a one-off extension to the interval but only in accordance with the following criteria:
(a) for intervals expressed in calendar time such as days, months or years — the maximum permitted extension is 10% of the interval or 3 months, whichever is lesser;
(b) for intervals expressed in units other than calendar time — the maximum permitted extension is 10% of the interval, or 200 units of the interval, whichever is lesser.
Note   For example, if the interval for a particular maintenance is 3000 cycles, the maximum permitted extension is 200 cycles and not 10% of the interval which amounts to 300 cycles.
      2.10.3 A one-off extension is not permitted under this section for any of the following:
(a) maintenance required by or under the approved design for the aircraft or aeronautical product, for example airworthiness limitation, certification maintenance requirement;
(b) maintenance required by an AD;
(c) replacement of life-limited parts.
      2.10.4 An extension under this section to the interval for certain maintenance in the maintenance program must not extend the subsequent occurrence of the maintenance.
Note   For example, if as a result of an extension, certain maintenance having an interval of 1 000 hours is carried out at 1 050 hours, the maintenance must next be carried out no later than 950 hours after the previous maintenance, to preserve the 1 000 hour interval.
Chapter 3

Requirements for approved reliability program

3.1 Introduction
      3.1.1 This Chapter specifies for paragraph 42.020 (2) (k) of CASR 1998, the requirements for a reliability program for an aircraft that requires a reliability program under regulation 42.155 of CASR 1998.

3.2 General requirements
      3.2.1 The reliability program must:
(a) be in writing; and
(b) define the meaning of any unique terms or acronyms used in the program; and
(c) contain the records of approval of:
 (i) the program; and
 (ii) any subsequent variations to the program.
Note