{"id":"F2008L04432","name":"AD/PA-44/12 - Engine Mount Frame - CANCELLED","slug":"ad-pa-44-12-engine-mount-frame-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":76428,"registerId":"commonwealth-F2008L04432-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-44 (Seminole) Series Aeroplanes","sectionType":"division","heading":"Piper PA-44 (Seminole) Series Aeroplanes","content":"### Piper PA-44 (Seminole) Series Aeroplanes\n\n| AD/PA-44/12 | Engine Mount Frame | 13/2008 |\n| ----------- | ------------------ | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                     |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 18 December 2008.                                                                                                                                                                                                                                                      |\n| Background:  | This unique Australian AD specified periodic inspection of engine mount rings until reinforcement by welding in accordance with Piper SB No. 937. Inspection was required at intervals not exceeding 100 hours time in service. Using an AD to mandate this inspection is no longer warranted. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n5 November 2008","sortOrder":0},{"sectionNumber":"AD/PA-44/12","sectionType":"part","heading":"AD/PA-44/12","content":"## AD/PA-44/12","sortOrder":1},{"sectionNumber":"Engine Mount Frame","sectionType":"part","heading":"Engine Mount Frame","content":"## Engine Mount Frame","sortOrder":2},{"sectionNumber":"13/2008","sectionType":"part","heading":"13/2008","content":"## 13/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2274},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"This instrument eliminates the entire scope of the previous directive, completely removing mandatory inspection requirements for engine mount frames on affected aircraft."},"complexity_factors":["Single operative provision cancelling previous instrument","No conditional logic, exceptions, or defined terms","Minimal cross-referencing limited to background context"],"plain_english_summary":"**What this is:** A cancellation of a previous safety directive for certain light twin-engine aircraft.\n\n**What it affects:** Owners and operators of **Piper PA-44 Seminole** aeroplanes.\n\n**What it does:** This instrument cancels an earlier Airworthiness Directive (a mandatory safety rule) that required regular inspections of engine mount rings every 100 hours of flight time until the mounts were reinforced by welding.\n\n**Why it matters:** The Civil Aviation Safety Authority (CASA) has determined these mandatory inspections are no longer necessary. Once cancelled, aircraft owners and operators no longer need to follow the previous inspection schedule for engine mount frames."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-44-12-engine-mount-frame-cancelled","history":"/api/acts/ad-pa-44-12-engine-mount-frame-cancelled/history","analysis":"/api/acts/ad-pa-44-12-engine-mount-frame-cancelled/analysis","conflicts":"/api/acts/ad-pa-44-12-engine-mount-frame-cancelled/conflicts","importantCases":"/api/acts/ad-pa-44-12-engine-mount-frame-cancelled/important-cases","documents":"/api/acts/ad-pa-44-12-engine-mount-frame-cancelled/documents"}}