Document ID: chunk:federal_register_of_legislation:F2006B10354:body:0
Version: federal_register_of_legislation:F2006B10354
Segment Type: other
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Character Range: 0–1215

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

 Hiller UH-12 Series Helicopters

 AD/HILLER 12/27
 Amdt 2

 Outer Gimbal Forward Attach Fitting - Inspection

 12/84
 TX

            Applicability: All models UH-12D and UH-12E series which have been converted to turbine power by STC SH177WE or SH 178WE.

             Requirement: 1. Remove the paint from the outer gimbal forward attach fitting of the Hiller Engine Mount P/No. 63181-5.

             2. Using a dye penetrant or a magnetic particle inspection technique, inspect the gusset weld beads for cracks on both the front and rear sides of the gusset.

            Note: FAA AD B4-19-08 refers.

             Compliance: 1. Within 20 hours' time in service after 06 November 1984 and thereafter at intervals not exceeding 600 hours' time in service.

            2. Upon installation or reinstallation of engine mount assy P/N 63181-5.

            Background: A recent overseas accident resulted from fatigue failure of the outer gimbal forward attach fitting. This directive has been amended to include repetitive inspections of the attach fitting.