COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Enstrom F-28 Series Helicopters
AD/ENST 28/19 Fuel Strainer Drain Valve - Modification 3/78
Applicability: All models.
Requirement: Modify the fuel strainer drain valve P/N K9000S-1A to return automatically to the closed position.
Note: Incorporation of Forrestair Drawing No. FSA 78.1 is an acceptable means of compliance.
Compliance: Within 100 hours time in service after 30 April 1978.