{"id":"F2008L04562","name":"AD/B727/215 - Elevator Quadrant Upper Support Assembly Attachment Fittings","slug":"ad-b727-215-elevator-quadrant-upper-support-assembly-attachment-fittings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":120867,"registerId":"commonwealth-F2008L04562-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 727 Series Aeroplanes","sectionType":"division","heading":"Boeing 727 Series Aeroplanes","content":"### Boeing 727 Series Aeroplanes\n\n| AD/B727/215 | Elevator Quadrant Upper SupportAssembly Attachment Fittings | 1/2009 |\n| ----------- | ----------------------------------------------------------- | ------ |\n\n| Applicability: | All Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series aircraft.                                                                                                                                                                                                                                                                                                                                                      |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the technical requirements of FAA AD 2008-22-12 Amdt 39-15708.Note: Boeing Special Attention Service Bulletin 727-55-0092 original issue, dated4 June 2007, or later FAA approved revision, refers.                                                                                                                                                                                                       |\n| Compliance:    | As specified in the Requirement document.                                                                                                                                                                                                                                                                                                                                                                                           |\n|                | This Airworthiness Directive becomes effective on 15 January 2009.                                                                                                                                                                                                                                                                                                                                                                  |\n| Background:    | The FAA received reports of elongated holes and cracks in the lugs of the attachment fittings of the elevator quadrant upper support assembly at the tip of the vertical fin. Undetected damage to the aft attachment lugs of the elevator quadrant support assembly could lead to failure of the lugs, which could accelerate wear elsewhere in the elevator control system and reduce the crew’s ability to maintain safe flight. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n24 November 2008","sortOrder":0},{"sectionNumber":"AD/B727/215","sectionType":"part","heading":"AD/B727/215","content":"## AD/B727/215","sortOrder":1},{"sectionNumber":"Elevator Quadrant Upper SupportAssembly ","sectionType":"part","heading":"Elevator Quadrant Upper SupportAssembly Attachment Fittings","content":"## Elevator Quadrant Upper Support  \nAssembly Attachment Fittings","sortOrder":2},{"sectionNumber":"1/2009","sectionType":"part","heading":"1/2009","content":"## 1/2009","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive addressing a specific safety defect in a specific aircraft type. It has not expanded beyond its original purpose of mandating inspection/repair of elevator quadrant fittings."},"complexity_factors":["Very short document (under 300 words)","Only 1 substantive requirement that references external technical documents rather than spelling out actions","No defined terms section — uses standard aviation terminology","No conditional logic or nested exceptions within the text itself","Single applicability criterion (aircraft model list)","Complexity is offloaded to referenced FAA AD and Boeing Service Bulletin, which are not reproduced here"],"plain_english_summary":"This AD requires operators of all Boeing 727 models to inspect and repair the elevator quadrant upper support assembly attachment fittings after reports of cracks and stretched bolt holes. Unrepaired fittings could break and lead to elevator control wear or failure, compromising safety.\n\nCompliance follows FAA AD 2008-22-12 and Boeing's service bulletin; the AD took effect 15 January 2009 and sets the deadlines."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The instrument adopts and makes mandatory the technical requirements of FAA AD 2008-22-12 for the listed Boeing 727 variants and references Boeing Service Bulletin 727-55-0092. The text shows adoption of the FAA AD without expanding or narrowing the set of aircraft or the required actions within this document (Applicability; Requirement; Note)."},"complexity_factors":["Cross-reference to FAA AD 2008-22-12 Amdt 39-15708 — the directive directs operators to an external FAA document for the technical requirements rather than reproducing them here (Requirement).","Reference to Boeing Special Attention Service Bulletin 727-55-0092 (original issue 4 June 2007) as further guidance — creates a multi-document compliance chain (Requirement note).","Broad applicability — applies to all listed Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F aircraft, so affects the entire fleet rather than a narrow subset (Applicability).","Compliance text delegates the specific inspections/repairs to the FAA AD ('Action in accordance with the technical requirements of FAA AD ...' and 'As specified in the Requirement document'), so implementation details and intervals must be sourced externally (Requirement; Compliance).","Safety-critical subject matter — the background reports elongated holes and cracks in attachment lugs that could lead to lug failure and reduced crew control, increasing operational urgency and potential for immediate maintenance action (Background).","Fixed effective date (15 January 2009) imposes a clear deadline for operators to meet the mandated actions (Compliance; Effective date).","Administrative enforcement through CASA (signature by the Delegate) — national regulator enforces the FAA-originated requirements domestically, which may involve oversight and recordkeeping by CASA (signature line)."],"plain_english_summary":"This directive requires operators of all Boeing 727 series aircraft to carry out the inspection and corrective actions set out in FAA AD 2008-22-12 (Amendment 39-15708), as guided by Boeing Service Bulletin 727‑55‑0092, to address elongated holes and cracks in the elevator quadrant upper support assembly attachment fittings. CASA makes compliance mandatory from 15 January 2009 because undetected damage could lead to lug failure and reduced elevator control (Background)."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b727-215-elevator-quadrant-upper-support-assembly-attachment-fittings","history":"/api/acts/ad-b727-215-elevator-quadrant-upper-support-assembly-attachment-fittings/history","analysis":"/api/acts/ad-b727-215-elevator-quadrant-upper-support-assembly-attachment-fittings/analysis","conflicts":"/api/acts/ad-b727-215-elevator-quadrant-upper-support-assembly-attachment-fittings/conflicts","importantCases":"/api/acts/ad-b727-215-elevator-quadrant-upper-support-assembly-attachment-fittings/important-cases","documents":"/api/acts/ad-b727-215-elevator-quadrant-upper-support-assembly-attachment-fittings/documents"}}