AD/B767/57 - Cargo Fire Extinguishing Agent Containers
1AD/B767/57 - Cargo Fire Extinguishing Agent Containers
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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Boeing 767 Series Aeroplanes
AD/B767/57 Cargo Fire Extinguishing Agent Containers 9/91
Applicability: Model 767 series as listed in Boeing SB 767-26A 0075, and SB 767-26 0076. Requirement: Action IAW 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.