{"id":"F2006B03248","name":"AD/B747/69 Amdt 2 - Off-Wing Escape Slide System","slug":"ad-b747-69-amdt-2-off-wing-escape-slide-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42672,"registerId":"commonwealth-F2006B03248-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/69 Amdt 2 - Off-Wing Escape Slide System","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)  \nBoeing 747 Series Aeroplanes\n\nAD/B747/69\n\nAmdt 2\n\n  \nOff-Wing Escape Slide System 6/97\n\nApplicability: Model 747-100, \\-200, and \\-300 series aircraft equipped with an off-wing, two-piece escape slide on door 3.\n\nRequirement: Action in accordance with the technical requirements of FAA AD 97-03-19 Amdt 39- 9924.\n\nNote: Boeing SB 747-25-2951 and OEA SB 2174200-25-013 refer.\n\nCompliance: As specified in the Requirement Document with a revised effective date of 22 May 1997.\n\nThis Airworthiness Directive becomes effective on 22 May 1997.\n\nBackground: There had been reports of actuator and thruster malfunctions that were the result of oil leakage past defective or contaminated ‘o’ rings.\n\nAmendment 1 required an inspection of the door opening thrusters and the door opening/snubbing actuators for proper oil quantity, and modification of the off-wing compartment latching assemblies.\n\nAmendment 2 is issued in response to a new FAA AD. The FAA received reports indicating that the requirements of the existing FAA AD do not adequately detect leakage of fluid from the actuators. This Directive adds a requirement for replacement of the currently installed door opening thrusters with new, improved thrusters.\n\nAmendment 1 of this Airworthiness Directive became effective on 2 February 1993. The original issue of this Airworthiness Directive became effective on 20 April 1989.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment stays tightly focused on its original purpose: fixing the off-wing escape slide system on specific Boeing 747 models. While it adds a new requirement (thruster replacement), this is a technical refinement responding to new safety data rather than scope creep. The directive has not expanded to cover other aircraft types, other door systems, or unrelated maintenance issues."},"complexity_factors":["Very short document (under 300 words)","Only 1 defined term implicitly used ('Applicability' refers to specific aircraft models)","No cross-references to other Australian legislation beyond the enabling regulation (CAR 1998 Part 39)","Single, clear compliance requirement: replace specified thrusters","No conditional logic or nested exceptions — applies straightforwardly to identified aircraft","Technical content is incorporated by reference to FAA AD 97-03-19 rather than spelled out in the text itself"],"plain_english_summary":"This safety order requires owners/operators of Boeing 747‑100/200/300 series aircraft with two‑piece off‑wing escape slides at door 3 to replace the door‑opening pneumatic thrusters. Replacing faulty thrusters fixes oil leaks past O‑rings that can stop doors from opening in an evacuation, preventing potential entrapment. This is the third update aligning Australian requirements with FAA findings that inspections alone didn’t eliminate the fluid‑leak hazard."},"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Scope expanded from the original focus on inspection and modification (Amendment 1 required inspection of thrusters/actuators and latching-assembly modification) to add mandatory replacement of existing door-opening thrusters with improved units to address leakage detection shortcomings (Amendment 2; Background)."},"complexity_factors":["Cross-reference to FAA AD 97-03-19 as the operative technical requirement (Requirement)","Specific applicability limited to 747-100/200/300 aircraft with off-wing two-piece slide on door 3 (Applicability)","Requirement to replace door-opening thrusters with improved units, not just inspect (Amendment 2; Background)","Prior amendment required inspections and latching-assembly modification, creating sequential compliance steps (Amendment 1; Background)","References to manufacturer service bulletins (Boeing SB 747-25-2951 and OEA SB 2174200-25-013) requiring coordination with suppliers and maintenance providers (Note)","Revised effective/compliance date and enforcement by CASA referencing FAA technical content (Compliance; Requirement)"],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 747‑100/200/300 aeroplanes fitted with an off‑wing two‑piece escape slide on door 3 to follow FAA AD 97‑03‑19: inspect door‑opening thrusters and actuators and replace existing door‑opening thrusters with improved units to stop oil leakage past O‑rings (Applicability; Requirement; Background). Compliance is mandatory from 22 May 1997 (Compliance). Operators bear inspection, modification and parts costs; CASA enforces the FAA‑referenced technical requirements (Requirement; Compliance)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-69-amdt-2-off-wing-escape-slide-system","history":"/api/acts/ad-b747-69-amdt-2-off-wing-escape-slide-system/history","analysis":"/api/acts/ad-b747-69-amdt-2-off-wing-escape-slide-system/analysis","conflicts":"/api/acts/ad-b747-69-amdt-2-off-wing-escape-slide-system/conflicts","importantCases":"/api/acts/ad-b747-69-amdt-2-off-wing-escape-slide-system/important-cases","documents":"/api/acts/ad-b747-69-amdt-2-off-wing-escape-slide-system/documents"}}