COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Aircraft - General
AD/GENERAL/51 Electrical External Power Connection - Inspection
11/75
Applicability: All aircraft with a maximum take-off weight of 5700 kg and below fitted with electrical external power provision.
Requirement: 1. Inspect the external power system to ensure that an external power supply with reversed polarity or phase sequence cannot be connected to the electrical system of the aircraft.
2. Modify or disconnect any external power system which does not comply with para. 1.
Compliance: Within 100 hours time in service after 28 November 1975.