{"id":"F2006B01932","name":"AD/A320/41 Amdt 1 - Passenger Door Safety Pin Guide Fitting and Telescopic Rod Freezing","slug":"ad-a320-41-amdt-1-passenger-door-safety-pin-guide-fitting-and-telescopic-rod-freezing","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41154,"registerId":"commonwealth-F2006B01932-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/A320/41 Amdt 1 - Passenger Door Safety Pin Guide Fitting and Telescopic Rod Freezing","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nAirbus Industrie A319, A320 and A321 Series Aeroplanes\n\nAD/A320/41\n\nAmdt 1\n\n  \n\nPassenger Door Safety Pin Guide Fitting and Telescopic Rod Freezing\n\n  \n7/99\n\nApplicability: All Model A320 and A321 aircraft without Modification 24389 incorporated.\n\nRequirement: Action in accordance with Airbus Industrie Service Bulletin (SB) A320-52-1057 Revision 6.\n\nNote: DGAC AD 1999-148-130(B) refers.\n\nCompliance: Before 31 August 2000.\n\nThis Amendment becomes effective on 15 July 1999.\n\nBackground: This Directive requires certain actions to the passenger door rods, fittings, and locking devices in order to prevent possible freezing of the door locking mechanism which could delay the evacuation of passengers during an emergency.\n\nAmendment 1 is issued in response to a revision of the related DGAC AD which calls up SB A320-52-1057 Revision 6 as the Requirement Document to correct an anomaly in previously issued Revision 5 of the Service Bulletin.\n\nThe original issue of this Airworthiness Directive became effective on 2 March 1995.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope of the 1995 directive. It simply updates the technical reference document from Revision 5 to Revision 6 of the Airbus Service Bulletin to correct an anomaly. The safety objective (preventing door mechanism freezing) and affected aircraft population remain unchanged."},"complexity_factors":["Very short document (approximately 200 words)","Only 1 defined term implicitly referenced (Modification 24389)","Single, unambiguous compliance requirement (follow the Airbus Service Bulletin)","No nested exceptions or conditional logic","Clear applicability criteria (specific aircraft models without specific modification)","Single cross-reference to French aviation authority document (DGAC AD 1999-148-130(B)) for context only"],"plain_english_summary":"This CASA Airworthiness Directive mandates inspections and modifications to passenger door locking components on Airbus A320/A321 aircraft (those without Modification 24389) to prevent the safety-pin guide fitting and telescopic rod from freezing and jamming emergency exits. Operators must follow Airbus Service Bulletin A320-52-1057 Revision 6.\n\nThe amendment took effect 15 July 1999, with compliance required by 31 August 2000 — a safety measure to ensure reliable emergency evacuation."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 1 updates the Requirement document to Airbus Service Bulletin A320-52-1057 Revision 6 (correcting an anomaly in Revision 5). Applicability (all A320/A321 without Modification 24389) and the compliance deadline (before 31 August 2000) remain in the instrument; the change is to the referenced corrective procedure rather than to the set of affected aircraft or the safety objective. The original AD became effective 2 March 1995."},"complexity_factors":["Narrow technical scope: targets passenger door rods, fittings and locking devices on specific A320/A321 fleet.","Applies only to aircraft without a particular modification (Mod 24389), requiring operators to check modification status.","Mandates compliance by reference to an external manufacturer document (Airbus SB A320-52-1057 Rev 6), creating dependency on the Service Bulletin's technical content.","Administrative deadline creates timetable pressure (compliance before 31 Aug 2000).","Safety-critical hardware changes increase regulatory oversight and potential need for post‑action verification/recording."],"plain_english_summary":"Requires operators of all Airbus A320/A321 aeroplanes that have not incorporated Modification 24389 to carry out the actions in Airbus Service Bulletin A320‑52‑1057 Revision 6 before 31 August 2000. The work addresses passenger‑door rods, fittings and locking devices to prevent freezing of the door locking mechanism and potential evacuation delays. The Civil Aviation Safety Authority mandates compliance; aircraft operators bear the cost and must alter maintenance practice or fit parts per the Service Bulletin."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-41-amdt-1-passenger-door-safety-pin-guide-fitting-and-telescopic-rod-freezing","history":"/api/acts/ad-a320-41-amdt-1-passenger-door-safety-pin-guide-fitting-and-telescopic-rod-freezing/history","analysis":"/api/acts/ad-a320-41-amdt-1-passenger-door-safety-pin-guide-fitting-and-telescopic-rod-freezing/analysis","conflicts":"/api/acts/ad-a320-41-amdt-1-passenger-door-safety-pin-guide-fitting-and-telescopic-rod-freezing/conflicts","importantCases":"/api/acts/ad-a320-41-amdt-1-passenger-door-safety-pin-guide-fitting-and-telescopic-rod-freezing/important-cases","documents":"/api/acts/ad-a320-41-amdt-1-passenger-door-safety-pin-guide-fitting-and-telescopic-rod-freezing/documents"}}