COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Airparts (NZ) Ltd. FU 24 Series Aeroplanes
AD/FU24/19 Engine Mounts and Firewalls 6/68
Applicability: All models except those fitted with Lycoming IO-720 engines.
Requirement: 1. Inspect the engine mounts for loose rivets and elongated rivet holes between the engine bearer frames P/N 243076 and 243077, and the engine mount casings P/N 244100 and 244101.
2. Inspect the firewall P/N 243140 for cracking particularly in the following locations:
(a) Adjacent to the nose leg lower attachment fitting P/N 243038;
(b) Adjacent to the doubler plates P/N 243128;
(c) Near the top of the two vertical reinforcing angles. Compliance: At intervals not exceeding 100 hours time in service.