{"id":"F2006B03300","name":"AD/B767/119 - Thrust Reverser Deactivation Pins","slug":"ad-b767-119-thrust-reverser-deactivation-pins","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42737,"registerId":"commonwealth-F2006B03300-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/B767/119 Thrust Reverser Deactivation","sectionType":"part","heading":"AD/B767/119 Thrust Reverser Deactivation Pins 6/2000","content":"# AD/B767/119 Thrust Reverser Deactivation Pins 6/2000\n\nApplicability: Model 767 series aircraft powered by PW4000 series engines.\n\nRequirement: Replace the deactivation pin, pin bushing in the aft cascade mounting ring, and insert flange on each thrust reverser half with new improved components in accordance with Boeing Alert Service Bulletin 767-78A0080 dated February 25, 1999.\n\nNote: FAA AD 99-26-02 Amdt 39-11462 refers.\n\nCompliance: Unless previously carried out, within 18 months time in service from the effective date of this Airworthiness Directive.\n\nThis Airworthiness Directive becomes effective on 15 June 2000.\n\nBackground: Partial deployment of deactivated thrust reversers has occurred during landing. Actions mandated by this Directive are intended to prevent failure of the thrust reverser deactivation pins, which could result in an in-flight deployment of the thrust reverser. Should this occur controllability of the aircraft will be reduced.\n\n![Signature of Eugene Paul Holzapfel, Delegate of the Civil Aviation Safety Authority.](image.003.png)  \n\nEugene Paul Holzapfel\n\nDelegate of the Civil Aviation Safety Authority 5 May 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 17 May 2000.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument itself states its applicability and requirements and does not indicate any change from an earlier scope. It applies to Model 767 series aircraft with PW4000 engines and mandates replacement of specified thrust-reverser components per Boeing Alert Service Bulletin 767-78A0080, to be completed within 18 months (Applicability; Requirement; Compliance)."},"complexity_factors":["Technical specificity: mandates replacement of particular parts (deactivation pin, pin bushing, insert flange) rather than a general inspection or operational restriction (Requirement).","Cross-reference to manufacturer instructions: requires compliance with Boeing Alert Service Bulletin 767-78A0080, so operators must obtain and follow that document for the corrective work (Requirement).","Regulatory timeline: sets a fixed compliance window of 18 months in service from the AD's effective date, requiring scheduling of maintenance within that period (Compliance).","Limited applicability: applies only to Model 767 series aircraft with PW4000 engines, narrowing the affected population but concentrating work on those operators (Applicability).","Safety-critical context: background identifies risk of partial or in-flight deployment and reduced controllability, which raises the stakes for timely compliance (Background).","External regulatory linkage: the AD notes a related FAA AD (99-26-02), indicating coordination or parallel regulatory action that operators may need to reconcile (Requirement)."],"plain_english_summary":"It requires replacing the deactivation pin, the pin bushing in the aft cascade mounting ring, and the insert flange on each thrust-reverser half with improved components per Boeing Alert Service Bulletin 767-78A0080.\n\nThe AD applies to Boeing 767 series aircraft powered by PW4000 engines. CASA's delegate issued it to prevent failure of those pins and possible partial or in‑flight thrust-reverser deployment; operators must complete the work within 18 months of the AD's effective date."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft/engine combination. The scope remains precisely limited to the thrust reverser deactivation pin issue as originally identified."},"complexity_factors":["Very short document (approximately 250 words)","Only 3 defined elements: applicability (aircraft model), requirement (specific parts and reference document), and compliance timeframe","Single, unambiguous action required with no conditional branches or exceptions","No cross-references to other legislation beyond a single note about the corresponding FAA directive","Clear, linear structure: applicability → requirement → compliance → background"],"plain_english_summary":"This Airworthiness Directive orders owners/operators of Boeing 767s with Pratt & Whitney PW4000 engines to replace specified thrust‑reverser components with improved parts per Boeing Service Bulletin 767‑78A0080 (Feb 1999). It’s required within 18 months to prevent deactivated reversers from partially or fully deploying in flight, reducing loss‑of‑control risk."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-119-thrust-reverser-deactivation-pins","history":"/api/acts/ad-b767-119-thrust-reverser-deactivation-pins/history","analysis":"/api/acts/ad-b767-119-thrust-reverser-deactivation-pins/analysis","conflicts":"/api/acts/ad-b767-119-thrust-reverser-deactivation-pins/conflicts","importantCases":"/api/acts/ad-b767-119-thrust-reverser-deactivation-pins/important-cases","documents":"/api/acts/ad-b767-119-thrust-reverser-deactivation-pins/documents"}}