COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Boeing 747 Series Aeroplanes
AD/B747/19 Lightning Protection of Fuel System - Modification 12/79
Applicability: All models.
Document: 1. FAA AD 79-20-11, Amdt. 39-3583; or
2. Boeing SBs 747-28-2068 Rev. 3, 747-28-2069 Rev. 1 and 747-28-2084, Rev. 1.
Compliance: Before 31 January 1981.
Background: A review of the effects of lightning strikes to the B747 aeroplane over a 4-5 year period has prompted modifications to ensure a positive electrical path to ground to voltages that may occur due to a lightning strike to the aeroplane.