Commonwealth legislation

AD/B747/19 - Lightning Protection of Fuel System - Modification

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Requires all Boeing 747 operators to install a specified fuel‑system lightning‑protection modification, completed by 31 January 1981, using one of the listed FAA or Boeing documents. Issued by CASA after a multi‑year lightning review to ensure the airplane provides a positive electrical path to ground; costs, downtime and compliance responsibility fall to owners/operators.

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AD/B747/19 - Lightning Protection of Fuel System - Modification

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source 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

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.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.