{"id":"F2006B02710","name":"AD/B727/186 - Forward Ceiling Access Panel/Door","slug":"ad-b727-186-forward-ceiling-access-panel-door","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42026,"registerId":"commonwealth-F2006B02710-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.001.png)  \n\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 CASR 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.\n\n![](image.001.png)  \n\nBoeing 727 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B727/186 Forward Ceiling Access Panel","sectionType":"part","heading":"AD/B727/186 Forward Ceiling Access Panel/Door 13/2003","content":"# AD/B727/186 Forward Ceiling Access Panel/Door 13/2003\n\nApplicability: Model 727-200 series aircraft; as listed in Boeing Service bulletin 727-25-0298, dated 13 February 2003.\n\nRequirement: Install four lanyards on the forward ceiling access panel/door, in accordance with Boeing Service Bulletin 727-25-0298.\n\nNote: FAA AD 2003-20-14 Amdt 39-13332 refers.\n\nCompliance: Within 18 months after 25 December 2003.\n\nThis Airworthiness Directive becomes effective on 25 December 2003.\n\nBackground: The action required by this Directive is necessary to prevent the forward ceiling access panel/door from falling down and impeding evacuation in an emergency situation.\n\n![Signature of David Villiers, Delegate of the Civil Aviation Safety Authority.](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 12 November 2003\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 3 December 2003.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","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 hazard on a specific aircraft type. The scope remains precisely limited to the stated safety purpose — preventing ceiling panel detachment during evacuation. No scope creep is evident."},"complexity_factors":["Very short document (approximately 250 words)","Only 1 defined applicability criterion (specific aircraft model and service bulletin reference)","Single, unambiguous requirement with clear technical reference","No nested exceptions or conditional logic","Straightforward compliance deadline (fixed date + 18 months)","Minimal cross-referencing (only one external Boeing document and one FAA AD mentioned in a note)"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of certain Boeing 727‑200s (as listed in Boeing Service Bulletin 727‑25‑0298, Feb 2003) to install four safety lanyards on a forward cabin ceiling access panel. The modification prevents the panel falling and blocking egress during an evacuation. Compliance is mandatory within 18 months of 25 December 2003."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD's scope is limited to Boeing 727‑200 aircraft listed in Boeing Service Bulletin 727‑25‑0298 and requires a specific hardware installation to address the stated unsafe condition. The Applicability and Requirement sections align with the stated purpose to prevent the panel/door from falling; there is no expansion beyond the listed aircraft or the single corrective action."},"complexity_factors":["Narrow technical requirement — a single hardware modification: install four lanyards on the forward ceiling access panel/door (Requirement section).","Limited applicability — only Model 727‑200 aircraft identified by Boeing Service Bulletin 727‑25‑0298 are affected (Applicability section).","Reliance on external documents — compliance must follow Boeing Service Bulletin 727‑25‑0298 and the AD notes FAA AD 2003‑20‑14 (Requirement and Note sections).","Fixed compliance timeframe — work must be completed within 18 months after 25 December 2003 (Compliance section), creating a scheduling and cost window for operators.","Cost and compliance burden placed on aircraft owners/operators — they must procure, install, and certify the modification per Boeing's instructions (Requirement section).","Low administrative discretion — directive issued by the CASA delegate under CASR subregulation 39.1(1), leaving limited room for variance (preamble/signature)."],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 727‑200 aircraft (as listed in Boeing Service Bulletin 727‑25‑0298) to install four lanyards on the forward ceiling access panel/door within 18 months of 25 December 2003. The CASA delegate issued the directive to stop the panel/door from falling and potentially blocking evacuation; aircraft owners/operators must follow Boeing's instructions and bear the installation responsibility."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b727-186-forward-ceiling-access-panel-door","history":"/api/acts/ad-b727-186-forward-ceiling-access-panel-door/history","analysis":"/api/acts/ad-b727-186-forward-ceiling-access-panel-door/analysis","conflicts":"/api/acts/ad-b727-186-forward-ceiling-access-panel-door/conflicts","importantCases":"/api/acts/ad-b727-186-forward-ceiling-access-panel-door/important-cases","documents":"/api/acts/ad-b727-186-forward-ceiling-access-panel-door/documents"}}