Copy · SB42-129-M-r0-inspection-of-exhaust-pipe (1) · 5 pages

© Diamond Aircraft. Filed by the FAA in regulations.gov docket FAA-2018-0188; AD 2018-10-10 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

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Diamond Diamond Aircraft Industries GmbH DAI MSB 42-129 AIRCRAFT N. A. Otto-Straße 5 Page 2 of 5 2700 Wiener Neustadt, Austria 17-May-2017

1.7 Concurrent Documents None.

1.8 Approval The technical information or instructions contained in this document relate to the Design Change Advisories No. MÄM 42-911 and OAM 42-252/d, which have been approved under the authority of EASA Design Organization Approval ref. EASA.21J.052.

The technical content of this document has been approved under the authority of DOA ref.

EASA.21J.052.

1.9 Accomplishments / Instructions

1. Remove engine cowling for engine installations with affected exhaust P/N installed

i.a.w. AMM section 71-10.

2. Inspect exhaust pipe circumferentially in marked area for cracks.

3. If cracks are found replace exhaust pipe or one time repair as follows:

Cracks up to 50 mm (2 inch) in axial direction may be one time weld-repaired: TIG welding using 1.4842 filler material and staff qualified according to ISO 24394.

No re-welding of the manifold joint is allowed.

NOTE: Weld repaired exhaust pipes remain subject to the recurring inspection.

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Diamond Diamond Aircraft Industries GmbH DAI MSB 42-129 AIRCRAFT N. A. Otto-Straße 5 Page 3 of 5 2700 Wiener Neustadt, Austria 17-May-2017 NOTE: Following types of cracks are acceptable for repair, NOT acceptable for repair.

The dot-dashed line indicates position & orientation of the crack.

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