{"id":"F2008L01512","name":"AD/B727/211 - MLG Side Strut","slug":"ad-b727-211-mlg-side-strut","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":119900,"registerId":"commonwealth-F2008L01512-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/B727/211 | MLG Side Strut | 6/2008 |\n| ----------- | -------------- | ------ |\n\n| Applicability: | 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 2008-08-02 Amdt 39-15454.                                                                                                                               |\n| Compliance:    | As specified in the Requirement document, with a revised effective date of5 June 2008.                                                                                                                                 |\n|                | This Airworthiness Directive becomes effective on 5 June 2008.                                                                                                                                                         |\n| Background:    | The FAA received reports of cracked threads on the main landing gear side strut lower segment. This condition, unless detected and corrected, could result in a fractured side strut and collapse of the landing gear. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n21 April 2008","sortOrder":0},{"sectionNumber":"AD/B727/211","sectionType":"part","heading":"AD/B727/211","content":"## AD/B727/211","sortOrder":1},{"sectionNumber":"MLG Side Strut","sectionType":"part","heading":"MLG Side Strut","content":"## MLG Side Strut","sortOrder":2},{"sectionNumber":"6/2008","sectionType":"part","heading":"6/2008","content":"## 6/2008","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive adopting a US FAA safety order for Australian-registered aircraft. It maintains its original narrow scope: addressing a specific mechanical defect in a specific aircraft type. No scope creep is evident."},"complexity_factors":["Very short document (under 300 words)","No defined terms section — relies entirely on external FAA document for technical requirements","Single, straightforward requirement: comply with referenced US directive","No conditional logic or nested exceptions within the text itself","Simple applicability table with clear aircraft model list"],"plain_english_summary":"Mandatory Australian AD requires inspection and repair of main landing‑gear side‑strut lower‑segment threads on certain Boeing 727 series (727/727C, 727‑100/100C, 727‑200/200F) per FAA AD 2008‑08‑02. Effective 5 June 2008, owners/operators must inspect for cracked threads and repair or replace parts as directed to prevent strut failure and potential landing‑gear collapse."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope aligns with the stated purpose: to require FAA-prescribed inspections/repairs for specified 727 models to address cracked side-strut threads. The instrument sets an effective date of 5 June 2008 but does not expand or narrow the applicability beyond the listed models (Applicability; Compliance; Background)."},"complexity_factors":["References an external technical instrument (FAA AD 2008-08-02) rather than reproducing procedural detail (Requirement)","Covers multiple 727 variants, so applicability screening is needed by operators (Applicability)","Safety-critical inspections and potential repairs create operational and cost impacts for operators (Background; Requirement)","Fixed effective date and compliance tied to the external document limits local administrative discretion (Compliance)","No novel enforcement or reporting regime is introduced—compliance follows established AD mechanisms (implicit from format)"],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 727 series aircraft to carry out the inspections and corrective actions set out in FAA AD 2008-08-02 (Requirement). It applies to Model 727, 727C, 727-100, 727-100C, 727-200 and 727-200F and is effective 5 June 2008 (Applicability; Compliance). The directive responds to reports of cracked threads on the main landing gear side strut lower segment; aircraft operators are responsible for compliance and any repairs."},"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-b727-211-mlg-side-strut","history":"/api/acts/ad-b727-211-mlg-side-strut/history","analysis":"/api/acts/ad-b727-211-mlg-side-strut/analysis","conflicts":"/api/acts/ad-b727-211-mlg-side-strut/conflicts","importantCases":"/api/acts/ad-b727-211-mlg-side-strut/important-cases","documents":"/api/acts/ad-b727-211-mlg-side-strut/documents"}}