{"id":"F2006L01674","name":"AD/B727/203 - Mid-Cabin Galley Doorway Upper and Lower Hinge Cutouts","slug":"ad-b727-203-mid-cabin-galley-doorway-upper-and-lower-hinge-cutouts","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":59405,"registerId":"commonwealth-F2006L01674-current","compilationNumber":null,"startDate":"2026-04-02","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/B727/203 | Mid-Cabin Galley Doorway Upperand Lower Hinge Cutouts | 7/2006 |\n| ----------- | ----------------------------------------------------- | ------ |\n\n| Applicability: | Model 727, 727C, 727-100, and 727-100C aircraft.                                                                                                                                                                                                                                                                                                                                                                                                               |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the technical requirements of FAA AD 2006-09-03 Amdt 39-14573.Note: Boeing Alert Service Bulletin 727-53A0228 original issue, or later FAA approved revision, refers.                                                                                                                                                                                                                                                                |\n| Compliance:    | As specified in the Requirement document, with a revised effective date of6 July 2006.                                                                                                                                                                                                                                                                                                                                                                         |\n|                | This Airworthiness Directive becomes effective on 6 July 2006.                                                                                                                                                                                                                                                                                                                                                                                                 |\n| Background:    | The FAA received reports of skin and bear strap cracking at the upper and lower hinge cutout and along the upper fastener row of the stringer 14R lap splice, and cracking in the doorstop fitting adjacent to the upper hinge cutout. There were also reports of cracking on aircraft previously modified in production. Such fatigue cracking of the fuselage could result in reduced structural integrity and possible rapid decompression of the aircraft. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n23 May 2006","sortOrder":0},{"sectionNumber":"AD/B727/203","sectionType":"part","heading":"AD/B727/203","content":"## AD/B727/203","sortOrder":1},{"sectionNumber":"Mid-Cabin Galley Doorway Upperand Lower ","sectionType":"part","heading":"Mid-Cabin Galley Doorway Upperand Lower Hinge Cutouts","content":"## Mid-Cabin Galley Doorway Upper  \nand Lower Hinge Cutouts","sortOrder":2},{"sectionNumber":"7/2006","sectionType":"part","heading":"7/2006","content":"## 7/2006","sortOrder":3}],"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"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The AD adopts the technical requirements of the FAA AD and Boeing Service Bulletin for the listed 727 models; the instrument updates an effective date to 6 July 2006 but does not indicate any substantive expansion or narrowing of applicability or technical scope compared with the referenced FAA action."},"complexity_factors":["Requirement cross‑references FAA AD 2006-09-03 and Boeing Alert Service Bulletin 727-53A0228, so operators must obtain and follow external technical documents (Requirement).","Applicability covers multiple 727 variants, requiring fleet identification to determine affected airframes (Applicability).","Addresses specific fatigue cracking locations (upper/lower hinge cutouts, stringer 14R lap splice, doorstop fitting) that require structural inspections and possible repairs — needs specialised maintenance engineering and certified repair resources (Background/Requirement).","Revised effective/compliance timing (effective 6 July 2006) creates scheduling and downtime implications for operators (Compliance).","Potential logistical constraints for older aircraft: parts availability, approved repair methods and qualified personnel may limit repair options.","Regulatory text delegates enforceability to CASA (signed by a CASA Delegate) but relies on FAA/Service Bulletin technical detail, leaving limited procedural discretion in the AD itself (Delegate/Requirement)."],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 727 series aeroplanes (727, 727C, 727‑100, 727‑100C) to perform inspections and any corrective actions set out in FAA AD 2006‑09‑03 (and the Boeing Alert Service Bulletin it references) for cracking at the mid‑cabin galley doorway upper and lower hinge cutouts. The measure targets fuselage fatigue cracking that could reduce structural integrity and risk rapid decompression; it takes effect on 6 July 2006."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive addressing a specific structural defect on specific aircraft models. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (under 300 words)","Only 4 defined aircraft models in applicability","Single technical requirement referencing external documents (FAA AD and Boeing Service Bulletin)","No nested conditions or exceptions","No cross-references to other Australian legislation","Straightforward compliance deadline structure"],"plain_english_summary":"Owners/operators of Boeing 727, 727C, 727‑100 and 727‑100C aircraft must inspect and repair fatigue cracking around the mid‑cabin galley (service) door hinge cutouts. Cracks found in skin and supports can lead to rapid decompression, including on some factory‑modified aircraft, so mandatory corrective action is required. Compliance follows FAA AD 2006‑09‑03 and Boeing Alert Service Bulletin 727‑53A0228; the AD effective date is 6 July 2006."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b727-203-mid-cabin-galley-doorway-upper-and-lower-hinge-cutouts","history":"/api/acts/ad-b727-203-mid-cabin-galley-doorway-upper-and-lower-hinge-cutouts/history","analysis":"/api/acts/ad-b727-203-mid-cabin-galley-doorway-upper-and-lower-hinge-cutouts/analysis","conflicts":"/api/acts/ad-b727-203-mid-cabin-galley-doorway-upper-and-lower-hinge-cutouts/conflicts","importantCases":"/api/acts/ad-b727-203-mid-cabin-galley-doorway-upper-and-lower-hinge-cutouts/important-cases","documents":"/api/acts/ad-b727-203-mid-cabin-galley-doorway-upper-and-lower-hinge-cutouts/documents"}}