Commonwealth legislation

AD/B747/97 - Cargo Fire Extinguishing Agent Containers

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD makes compliance with FAA AD 91‑12‑03 Amdt 39‑7014 mandatory for certain Boeing 747‑400s on the Australian register, requiring the FAA‑prescribed inspections/modifications to address water freezing in fire‑extinguishing distribution lines that can reduce discharge or give false low‑pressure indications. It affects operators/maintainers of the listed 747‑400s, takes effect 5 September 1991, and imposes direct compliance costs (work, parts, downtime).

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/B747/97 - Cargo Fire Extinguishing Agent Containers.

AD/B747/97 - Cargo Fire Extinguishing Agent Containers

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/B747/97 Cargo Fire Extinguishing Agent Containers 9/91

Applicability: Model 747-400 series as listed in Boeing SB 747-26A 2180.

Requirement: Action in accordance with the Technical Requirements of FAA AD 91-12-03 Amdt 39-7014.

Compliance: As specified in the Requirement Document with a revised effective date of 5 September 1991 for Australian registered aircraft.

Background: The FAA has received a report from one operator identifying two occurrences of false indication of low pressure in the cargo compartment fire extinguishing containers.

This condition, if not corrected, could reduce or stop the discharge of fire extinguishing agent due to water freezing in the metered distribution lines, and could cause false low pressure indications in the initial discharge indicating system.

Source text

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

1 AD/B747/97 - Cargo Fire Extinguishing Agent Containers