Commonwealth legislation

AD/B747/101 - Radio Control Panels

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This directive requires operators of Boeing 747‑400s fitted with listed radio control panel part numbers to remove them and install the specified updated part‑number replacements before 12 January 1993, implementing a CASA measure that mirrors FAA AD 91‑21‑12.

Its stated purpose is to prevent uncommanded HF and VHF frequency changes; maintenance organisations perform the replacements and operators must comply, while costs and post‑installation verification are not addressed in the text.

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Current sections

Direct links to the current provisions in AD/B747/101 - Radio Control Panels.

AD/B747/101 - Radio Control Panels

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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/B747/101 Radio Control Panels 2/92

Applicability: Boeing 747-400 series aircraft equipped with Boeing part number 285U0037-104, - 105, -201, -202 or -203 series radio control panels.

Requirement: Remove radio control panels, part numbered 285U0037-104, -105, -201, -202 and - 203 and replace with part numbers 285U0037-304, -305,-301, -302 and -303 respectively.

Note: FAA AD 91-21-12 refers.

Compliance: Prior to 12 January 1993.

Background: Country of origin AD. To prevent uncommanded frequency changes of the high frequency (HF) and very high frequency (VHF) radios.

Source text

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