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AD/MU-2/71 - Wing Attachment Barrel Nuts and Bolts
Mitsubishi MU-2 Series AeroplanesMitsubishi MU-2 Series Aeroplanes
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Mitsubishi MU-2 Series Aeroplanes
| AD/MU-2/71 | Wing Attachment Barrel Nuts and Bolts | 3/2007 |
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| Applicability: | Model MU-2B-10, -15, -20, -25, -26 aircraft, serial numbers 101 through 347, except serial numbers 313 and 321.Model MU-2B-30, -35, -36 aircraft, serial numbers 501 through 696, except serial numbers 652 and 661. |
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| Requirement: | Action in accordance with Mitsubishi Service Bulletin No. 241A dated21 November 2006 or later JCAB approved revisions.Note: JCAB AD TCD-7030-2006 refers. |
| Compliance: | Within 200 hours time in service or 12 months after 15 March 2007, whichever occurs first. |
| This Airworthiness Directive becomes effective on 15 March 2007. | |
| Background: | The manufacturer received a report of several fractured wing attachment barrel nuts that were detected during routine maintenance. During a subsequent field survey, no additional cracked barrel nuts were detected, but a significant number of aircraft were found to have incorrect torque values on the wing attachment bolts. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
1 February 2007