{"id":"F2011L01067","name":"AD/V2500/7 - In-flight Shutdown","slug":"ad-v2500-7-in-flight-shutdown","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":86872,"registerId":"commonwealth-F2011L01067-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"International Aero Engines AG V2500 Seri","sectionType":"division","heading":"International Aero Engines AG V2500 Series","content":"### International Aero Engines AG V2500 Series\n\n| AD/V2500/7 | In-flight Shutdown | 12/2011 |\n| ---------- | ------------------ | ------- |\n\n| Applicability: | International Aero Engines AG V2527-A5 and V2533-A5 with serial numbers V10079 and below, V2500-A1 with any serial number, and other models of turbofan engine listed in the requirement document; unless terminating action prescribed in the requirement document has been accomplished. |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | After an in-flight shutdown, accomplish the actions prescribed in FAA AD 99-13-01, Amendment 39-11194.Note: IAE All Operators Wire No. 1046, Issue 2 dated May 21, 1999 or later issue, refers.                                                                                            |\n| Compliance:    | After an in-flight shutdown, as prescribed in the requirement document.                                                                                                                                                                                                                    |\n|                | This Airworthiness Directive becomes effective on 24 June 2011.                                                                                                                                                                                                                            |\n| Background:    | The FAA issued AD 99-13-01 to prevent failure of HPT hardware due to ignition of trapped oil. This could result in an uncontained engine failure and damage to the aeroplane.                                                                                                              |\n\n![](image.001.png)  \nGlen Steemson  \nDelegate of the Civil Aviation Safety Authority\n\n16 June 2011","sortOrder":0},{"sectionNumber":"AD/V2500/7","sectionType":"part","heading":"AD/V2500/7","content":"## AD/V2500/7","sortOrder":1},{"sectionNumber":"In-flight Shutdown","sectionType":"part","heading":"In-flight Shutdown","content":"## In-flight Shutdown","sortOrder":2},{"sectionNumber":"12/2011","sectionType":"part","heading":"12/2011","content":"## 12/2011","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":3,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive addressing a specific safety defect in specific engine models. The scope remains tightly focused on preventing HPT hardware failures due to oil ignition following in-flight shutdowns. There is no evidence of scope creep; it does exactly what it says on the tin."},"complexity_factors":["Short, single-purpose directive (approximately 200 words)","Only 3 defined applicability criteria (specific engine models and serial numbers)","Single cross-reference to external FAA directive (AD 99-13-01)","Simple trigger condition ('after an in-flight shutdown') with no nested exceptions","No internal definitions section — relies entirely on external technical documents","Straightforward compliance timing ('after an in-flight shutdown')"],"plain_english_summary":"This Airworthiness Directive mandates that operators of specified V2500 engines (V2527-A5 and V2533-A5 up to serial V10079, and all V2500-A1) perform FAA-prescribed HPT inspections and actions after any in‑flight engine shutdown. It responds to a risk of oil trapped in the high‑pressure turbine igniting and causing uncontained engine failure — legally required for affected airlines and maintenance organisations."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"This AD adopts the corrective measures prescribed in FAA AD 99-13-01 for the specified V2500 engine models and serial numbers and restricts its obligations to actions following an in-flight shutdown or until a prescribed terminating action is accomplished. It does not, on its face, expand the FAA requirements beyond those adoptive terms; applicability is limited to the engines/serial numbers listed."},"complexity_factors":["Cross-references an external FAA airworthiness directive (FAA AD 99-13-01) as the required action, creating dependency on an external document.","Applicability limited by engine model and serial-number thresholds, requiring record checks to determine applicability.","Trigger is event-driven (applies only after an in-flight shutdown), so operators must monitor and report events to know when to act.","Permits termination of the requirement if a prescribed 'terminating action' has been completed, adding a conditional compliance pathway.","References operator communications (IAE All Operators Wire No. 1046) and later issues, introducing ongoing document-tracking and revision risk.","Safety consequence (risk of uncontained failure) increases enforcement and inspection attention, raising operational and maintenance costs for affected parties."],"plain_english_summary":"This directive tells operators of certain International Aero Engines V2500 turbofan engines what to do if an engine has an in-flight shutdown. It requires the engine owner/operator to carry out the corrective actions set out in FAA AD 99-13-01 (and referenced IAE operator guidance) after any in-flight shutdown. The stated purpose is to prevent high-pressure turbine hardware failure from ignited trapped oil, which could cause uncontained engine damage. Compliance is mandatory for the listed engine models/serial numbers unless a specified terminating action has already been done."}},"importantCases":[],"_links":{"self":"/api/acts/ad-v2500-7-in-flight-shutdown","history":"/api/acts/ad-v2500-7-in-flight-shutdown/history","analysis":"/api/acts/ad-v2500-7-in-flight-shutdown/analysis","conflicts":"/api/acts/ad-v2500-7-in-flight-shutdown/conflicts","importantCases":"/api/acts/ad-v2500-7-in-flight-shutdown/important-cases","documents":"/api/acts/ad-v2500-7-in-flight-shutdown/documents"}}