AD/S-76/9 - Cyclic Torque Tube - Inspection of Centre Support Bearing Housing
1AD/S-76/9 - Cyclic Torque Tube - Inspection of Centre Support Bearing Housing
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Sikorsky S-76 Series Helicopters
AD/S-76/9 Cyclic Torque Tube - Inspection of Centre Support Bearing Housing
3/80
Applicability: Model S-76. Document: Sikorsky CSB 76-67-7.
Compliance: Within 10 hours time in service after 14 February 1980.
Background: Some bearing support housings have been incorrectly manufactured, with the bearing retaining shoulder on the wrong side. This would permit axial displacement of the bearing along the torque tube.