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AD/P68/28 Amdt 4 - Engine Mount Fittings
Partenavia P68 Series AeroplanesPartenavia P68 Series Aeroplanes
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Partenavia P68 Series Aeroplanes
| AD/P68/28 Amdt 4 | Engine Mount Fittings | 6/2013 |
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| Applicability: | All Models. |
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| Requirement: | Action in accordance with Partenavia SB No 70 Rev 2.Note: Para 1-13B of the Requirement document specifies 75/1000 of local thickness, e.g. if local thickness is 3 mm (0.125") then max allowable corrosion depth is 0.24 mm (0.009"). |
| Compliance: | Section 1: Unless already accomplished in accordance with previous revisions of the Requirement document, prior to the issue of the next Maintenance Release after 25 October 1989, or prior to 5 calendar years since the date of manufacture. Thereafter in accordance with Section 3.Section 3: Every 500 hours time in service or 2 years, whichever happens first, after compliance with Section 1. |
| This Amendment becomes effective on 29 March 2013. | |
| Background: | Reports of corrosion and extensive cracking of the engine mount attachment fittings have been received.Amendment 3 clarified the 75/1000 allowable corrosion depth and called for a re‑inspection where 1.9 mm (0.075") may have been used as the acceptance/rejection criterion.Amendment 4 makes reference to Partenavia Service Bulletin No 70 rev 2. |
Peter Nikolic
Delegate of the Civil Aviation Safety Authority
12 March 2013