Commonwealth legislation

AD/A320/14 - Landing Gear - Interruption of Retraction Sequence

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This Airworthiness Directive from CASA mandates owners/operators of certain Airbus A320-111/211/231 aircraft (without factory Modification 21920) to perform the repairs specified in Airbus Service Bulletin A320-32-1048 before 4 December 1990. It addresses a hazard where loss of electrical power during gear retraction can trip a relay, cut landing-gear hydraulics and allow unintended gear drop and lock — a serious flight-safety risk. The DGAC issued a corresponding directive.

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Current sections

Direct links to the current provisions in AD/A320/14 - Landing Gear - Interruption of Retraction Sequence.

AD/A320/14 - Landing Gear - Interruption of Retraction Sequence

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Airbus Industrie A319, A320 and A321 Series Aeroplanes

AD/A320/14 Landing Gear - Interruption of Retraction Sequence 10/90

Applicability: All A320-111, 211 and 231 models without Airbus Industrie Modification 21920 incorporated.

Requirement: Action in accordance with Airbus Industrie Service Bulletin A320-32-1048.

Note: DGAC AD 90-026-007 (B) R1 refers.

Compliance: Prior to 4 December 1990.

Background: Airbus have advised that an interruption of electrical power during the landing gear retraction sequence can cause the de-energization of relay 48GA. This in turn can result in hydraulic pressure being removed from the landing gear retraction system thus allowing the landing gear to extend and lock in the down position due to the effect of gravity.

Source text

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

1 AD/A320/14 - Landing Gear - Interruption of Retraction Sequence