{"id":"F2006B01872","name":"AD/A320/125 Amdt 1 - Thrust Reverser Actuators","slug":"ad-a320-125-amdt-1-thrust-reverser-actuators","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41068,"registerId":"commonwealth-F2006B01872-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Terminating Action","sectionType":"part","heading":"Terminating Action","content":"# Terminating Action\n\nThe installation of actuator P/N D23090000-6 at all thrust reverser pivot doors of both engines is terminating action for this Directive.\n\nNote 2: DGAC AD 2001-361(B) R1 refers.\n\nCompliance: Remains unchanged. As detailed in the Requirement document with the effective date of 4 October 2001.\n\nThis Amendment becomes effective on 30 October 2003.\n\nBackground: This Directive was originally issued to require the inspection and replacement of thrust reverser actuators following evidence that some actuators had accumulated more cycles in service than allowed by qualification. This amendment has been raised in response to a revision to the DGAC AD, that includes in the applicability actuators that may have been installed whose identification cannot be positively established.\n\nNote, that the effective date for compliance with this Directive remains the same as the original issue of this Directive.","sortOrder":0},{"sectionNumber":"Airbus Industrie A319, A320 and A321 Ser","sectionType":"part","heading":"Airbus Industrie A319, A320 and A321 Series Aeroplanes","content":"# Airbus Industrie A319, A320 and A321 Series Aeroplanes\n\nAD/A320/125 Amdt 1 (continued)\n\nThe original issue of this Airworthiness Directive became effective on 4 October 2001.\n\n![](image.002.png)  \n\nJim Coyne\n\nDelegate of the Civil Aviation Safety Authority 18 September 2003\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 8 October 2003.","sortOrder":1}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"The original directive required inspection and replacement of actuators with known excessive cycles. This amendment expands the scope to include aircraft where actuator identification cannot be positively established — effectively broadening the safety net to catch potentially problematic parts that might have been missed in the original narrower application."},"complexity_factors":["Very short document (under 300 words)","Only one substantive technical requirement (install specific part number)","Minimal defined terms (only standard aviation abbreviations like P/N for 'part number')","No nested conditional logic or cross-references to other legislation","Single amendment to existing directive with straightforward scope expansion","Clear terminating action specified — no ongoing monitoring requirements"],"plain_english_summary":"This AD requires Australian operators of certain Airbus A319/A320/A321 aircraft to replace potentially over‑cycled thrust reverser actuators with part D23090000-6 on all thrust reverser pivot doors. The amendment expands applicability to aircraft where installed actuator part numbers couldn't be positively identified. Installing the specified part is terminating action. The original compliance deadline remains 4 October 2001."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The amendment broadens applicability to include actuators that may have been installed but whose identification cannot be positively established, thereby increasing the set of actuators (and so operators/aircraft) required to take action. The mechanical remedy remains the same (install P/N D23090000-6 as terminating action) and the original compliance date (4 October 2001) is unchanged (see \"Terminating Action\" and Background)."},"complexity_factors":["Narrow, single technical remedy (installation of one specific part number) reduces legal complexity.","Cross-reference to DGAC AD revision adds an external dependency to interpret applicability.","Uncertainty in actuator identification increases operational complexity for operators (inspection burden).","Compliance timing unchanged despite the amendment limits temporal complexity but preserves original obligations.","Applicability limited to Airbus A319/A320/A321 fleet narrows regulatory footprint.","Terminology (‘terminating action’) requires understanding of AD compliance mechanics but is standard in aviation ADs."],"plain_english_summary":"This amendment makes installing actuator P/N D23090000-6 on every thrust-reverser pivot door of both engines the \"terminating action\" for the Airworthiness Directive that applies to Airbus A319/A320/A321 aeroplanes. It responds to a DGAC revision that expands applicability to actuators whose identification cannot be positively established.\n\nOperators must inspect and, if needed, replace suspect actuators with the specified part; operators pay for parts, labour and any associated aircraft downtime. The compliance date remains the original 4 October 2001."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-125-amdt-1-thrust-reverser-actuators","history":"/api/acts/ad-a320-125-amdt-1-thrust-reverser-actuators/history","analysis":"/api/acts/ad-a320-125-amdt-1-thrust-reverser-actuators/analysis","conflicts":"/api/acts/ad-a320-125-amdt-1-thrust-reverser-actuators/conflicts","importantCases":"/api/acts/ad-a320-125-amdt-1-thrust-reverser-actuators/important-cases","documents":"/api/acts/ad-a320-125-amdt-1-thrust-reverser-actuators/documents"}}