{"id":"F2009L01357","name":"AD/M20/14 - Propeller Inspection and Operating Restriction - CANCELLED","slug":"ad-m20-14-propeller-inspection-and-operating-restriction-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":77764,"registerId":"commonwealth-F2009L01357-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Mooney M20 Series Aeroplanes","sectionType":"division","heading":"Mooney M20 Series Aeroplanes","content":"### Mooney M20 Series Aeroplanes\n\n| AD/M20/14 | Propeller Inspection and Operating Restriction | 5/2009 |\n| --------- | ---------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                              |\n| ------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 7 May 2009.                                                                                                                                                                                                                                                                                     |\n| Background:  | This AD was raised in1970, and required an inspection of propeller blades for damage, and installation of a placard on the instrument panel. Compliance was required within 25 hours TIS after 29 January 1970.As all affected aircraft would have been inspected and modified long ago, this AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n16 March 2009","sortOrder":0},{"sectionNumber":"AD/M20/14","sectionType":"part","heading":"AD/M20/14","content":"## AD/M20/14","sortOrder":1},{"sectionNumber":"Propeller Inspection and Operating Restr","sectionType":"part","heading":"Propeller Inspection and Operating Restriction","content":"## Propeller Inspection and Operating Restriction","sortOrder":2},{"sectionNumber":"5/2009","sectionType":"part","heading":"5/2009","content":"## 5/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1530},"content_quality":"ok","complexity_score":1,"rejection_reason":"","scope_assessment":{"changed":false,"description":"This instrument serves a narrow, specific purpose: to cancel a 1970 airworthiness directive that has become obsolete. It does not expand regulatory scope or introduce new substantive requirements."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislative instruments","Background section contains only historical facts, not legal tests","Document consists of one table and one explanatory paragraph"],"plain_english_summary":"CASA cancels the old Airworthiness Directive requiring a one-time propeller inspection and instrument‑panel placard for Mooney M20 series aeroplanes, formally revoking AD M20/14 effective 7 May 2009. This affects owners/operators of those aircraft by removing an obsolete, legally binding requirement that would have been complied with decades ago, simplifying the rulebook and reducing regulatory confusion."}},"importantCases":[],"_links":{"self":"/api/acts/ad-m20-14-propeller-inspection-and-operating-restriction-cancelled","history":"/api/acts/ad-m20-14-propeller-inspection-and-operating-restriction-cancelled/history","analysis":"/api/acts/ad-m20-14-propeller-inspection-and-operating-restriction-cancelled/analysis","conflicts":"/api/acts/ad-m20-14-propeller-inspection-and-operating-restriction-cancelled/conflicts","importantCases":"/api/acts/ad-m20-14-propeller-inspection-and-operating-restriction-cancelled/important-cases","documents":"/api/acts/ad-m20-14-propeller-inspection-and-operating-restriction-cancelled/documents"}}