Document ID: chunk:federal_register_of_legislation:F2006B02533:body:0
Version: federal_register_of_legislation:F2006B02533
Segment Type: other
Provision Reference: 
Character Range: 0–1319

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 Eurocopter AS 355 (Twin Ecureuil) Series Helicopters

 AD/AS 355/9 Main Gear Box Bevel Reduction Gear
                    Module - Inspection of Bevel Ring Gear/Vertical Shaft Attachment Bolts

 3/83

            Applicability: All model AS 355 helicopters fitted with a main gearbox containing bevel reduction gear assembly, Part Number 355A.32.0600.00 and 01, not modified under A.M.S.
            07.7082 or A.M.S. 07.7083.

 Document: AS 355 SB 05.05.

            Note: Bureau Veritas AD 82-178-8(B) refers.

                  Compliance: PART 1: Within 10 hours time in service after 31st March 1983 every 50 hours thereafter, prior to compliance with Part 2: Carry out the visual check.

                  PART 2: Within 300 hours time in service after 31st March 1983: Carry out the screw tightening check, as a one time only inspection.

                  PART 3: Every 300 hours time in service, after compliance with Part 2: Carry out the visual check.

            Background:  The manufacturer advises that there have been several cases of sheared and loose bolts, securing the bevel ring gear to the vertical shaft, found during maintenance operations.