Subpart M - Repairs

21.431 Purpose

This Subpart details requirements for the approval and design and recording of repairs.

21.433 Repairs

(a) A repair that is not covered by existing approved maintenance data shall be designed and subject to approval as a design change in accordance with Subpart C of this OTAR Part.

(b) A Type Certificate holders approved repair scheme is considered to be approved maintenance data and therefore does not need further approval by the Governor.

(c) The installer of a Type Certificate holder’s repair scheme shall ensure that:

(1) there is sufficient technical evidence of interoperability and compatibility with the existing type design and repair status of the aircraft; and

(2) any continued airworthiness information for a repair scheme is available and integrated into the appropriate maintenance programme.

21.437 Continued airworthiness requirements

(a) An accomplished repair that by design requires continued inspection or further work shall be recorded in the aircraft records in a manner acceptable to the Governor.

(b) Any continued airworthiness requirements associated with an accomplished repair shall be integrated into the approved Maintenance Programme for the aircraft.

(c) Details of accomplished repairs and continued airworthiness instructions shall be recorded in accordance with OTAR Part 39 Subpart D.


Change Information

  1. First Issue - published for information June 2004
  2. Second issue - published for information April 2005
  3. Third issue – released for gazetting July 2005
  4. Fourth issue – April 2011
  5. Fifth issue – October 2013
  6. Sixth issue – January 2015
  7. Seventh issue - August 2017
  8. Eighth issue - January 2019

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