COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters
AD/HU 369/39 Tail Rotor Control Bellcrank Supports - Inspection and Modification
8/79
Applicability: All 500 model 369 series helicopters. All 500D model 369D with S/Nos. 0003D to 0531D, 0533D, 0535D and 0537D.
Document: 1. Hughes SIN No. HN-139 for Model 500;
2. Hughes SIN No. DN-49 for Model 500D.
Compliance: Inspection - Within 25 hours time in service after 17 July 1979 and thereafter at 100 hour intervals until modified to Part II of the relevant requirement document.
Background: Cracks may develop in the tail rotor control bellcrank supports at STN. 142.