COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Propellers - Variable Pitch - De Havilland
AD/PDH/4 Model 4/4000/6 Blade - Modification NK
Applicability: All blades fitted to types PD66/446/2 and PD96/446/1 propellers. Document: 1. DH MHS Series 4HF No. 118; or
2. ANO 107.1.4.9.5.1.
Compliance: Before installation in an aircraft.