{"id":"F2009L02789","name":"AD/MU-2/73 - Baggage Compartment / Engine Bleed Lines","slug":"ad-mu-2-73-baggage-compartment-engine-bleed-lines","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":79983,"registerId":"commonwealth-F2009L02789-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Mitsubishi MU-2 Series Aeroplanes","sectionType":"division","heading":"Mitsubishi MU-2 Series Aeroplanes","content":"### Mitsubishi MU-2 Series Aeroplanes\n\n| AD/MU-2/73 | Baggage Compartment / Engine Bleed Lines | 8/2009 |\n| ---------- | ---------------------------------------- | ------ |\n\n| Applicability: | Model MU-2B, MU-2B-10, -15, and -20 aircraft, serial numbers 005 through 164; except aircraft in compliance with Mitsubishi MU-2 Service RecommendationNo. 033 or 033A.                                                          |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Accomplish the modification of the baggage compartment ceiling in accordance with the instructions of Mitsubishi MU-2 Service Bulletin No. 182 original issue, or later JCAB approved revision.Note: JCAB AD TCD-1817-79 refers. |\n| Compliance:    | Unless already accomplished, before 31 August 2009.                                                                                                                                                                              |\n|                | This Airworthiness Directive becomes effective on 30 July 2009.                                                                                                                                                                  |\n| Background:    | There is the possibility of a baggage compartment fire occurring due to baggage contact with the engine bleed air ducting. This Directive is issued to ensure compliance of future imported aircraft.                            |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n18 June 2009","sortOrder":0},{"sectionNumber":"AD/MU-2/73","sectionType":"part","heading":"AD/MU-2/73","content":"## AD/MU-2/73","sortOrder":1},{"sectionNumber":"Baggage Compartment / Engine Bleed Lines","sectionType":"part","heading":"Baggage Compartment / Engine Bleed Lines","content":"## Baggage Compartment / Engine Bleed Lines","sortOrder":2},{"sectionNumber":"8/2009","sectionType":"part","heading":"8/2009","content":"## 8/2009","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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard single-issue Airworthiness Directive addressing a specific identified safety hazard. The scope remains tightly focused on the baggage compartment/fire risk issue as originally intended."},"complexity_factors":["Very short document (under 300 words)","Only 4 defined applicability criteria (model variants, serial number range, and one exception)","Single requirement referencing an external technical document (Service Bulletin No. 182)","No nested conditional logic or cross-references to other legislation","Simple compliance deadline structure (single fixed date)","Straightforward background explanation with clear causal chain (baggage contact → fire risk)"],"plain_english_summary":"This AD mandates that owners/operators of certain Mitsubishi MU-2 (MU-2B, -B-10, -15, -20; s/n 005–164) modify the baggage compartment ceiling per Mitsubishi Service Bulletin No. 182 (or later) to prevent baggage contacting hot engine bleed-air ducting and reduce fire risk. It applies to aircraft imported into Australia and must be completed by 31 August 2009 unless Service Recommendation No. 033/033A has already been embodied."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains focused on requiring a physical modification for the specified serial-numbered MU-2 models to address the bleed-air/baggage contact risk. The Directive targets future imported aircraft compliance as stated in the Background and does not broaden the affected fleet beyond the listed applicability or add additional obligations."},"complexity_factors":["Narrow applicability: limited to specific MU-2 models and serial numbers (Applicability).","Single technical mandate: one modification (baggage compartment ceiling) specified by a Service Bulletin (Requirement).","External document dependence: compliance tied to Mitsubishi Service Bulletin No.182 or later JCAB‑approved revision, adding procedural dependency.","Exception clause: aircraft already compliant with Service Recommendation No.033/033A are excluded, requiring record checks.","Fixed compliance deadline (before 31 August 2009) creates scheduling and logistical burden for owners/operators (Compliance).","Regulatory provenance: issued and enforceable by the Civil Aviation Safety Authority delegate, with cross-reference to JCAB AD TCD-1817-79 (Background/Note)."],"plain_english_summary":"Requires owners/operators of Mitsubishi MU-2B, MU-2B-10, -15 and -20 aeroplanes (serials 005–164), unless already compliant with Service Recommendation 033/033A, to modify the baggage compartment ceiling per Mitsubishi Service Bulletin No.182 (or a JCAB‑approved revision). The stated purpose is to prevent baggage contacting engine bleed air ducting and the resulting fire risk. Aircraft owners must pay for and arrange the modification and comply by 31 August 2009; the regulator enforces the requirement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-mu-2-73-baggage-compartment-engine-bleed-lines","history":"/api/acts/ad-mu-2-73-baggage-compartment-engine-bleed-lines/history","analysis":"/api/acts/ad-mu-2-73-baggage-compartment-engine-bleed-lines/analysis","conflicts":"/api/acts/ad-mu-2-73-baggage-compartment-engine-bleed-lines/conflicts","importantCases":"/api/acts/ad-mu-2-73-baggage-compartment-engine-bleed-lines/important-cases","documents":"/api/acts/ad-mu-2-73-baggage-compartment-engine-bleed-lines/documents"}}