Document ID: chunk:federal_register_of_legislation:F2006B06425:body:0
Version: federal_register_of_legislation:F2006B06425
Segment Type: other
Provision Reference: 
Character Range: 0–1187

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

 Robinson R22 Series Helicopters

AD/R22/2 Tailcone Support Structure - Inspection 2/81

 Applicability: All models R22 with S/Nos. 0002 to 0082.

            Requirement: To prevent loss of the tailcone resulting from supporting framework tube or tube weld fractures accomplish the following:

              1. Using a dye penetrant technique inspect the tubes and welds for cracks per methods of, and in the areas identified as Items 1 to 4 of the figure of Robinson SB No. B-4.

2.    On reassembling the P/N A 023 tailcone assembly use the following new parts: NAS - 679-A4 nut              (5 each)
             NAS - 1304-22 bolt (4 each)

             NAS - 1304-3 bolt (1 each)

             Pal Nuts (5 each)

            Note: FAA AD 80-24-01 Amdt. 39-3975 refers.

            Compliance: Initially inspect before achieving 110 hours time in service after manufacture and thereafter at intervals not exceeding 100 hours time in service.

 Background: Cracks may develop in the tailcone support structure during normal service.