{"id":"F2008L04077","name":"AD/PA-25/4 - Front Spar Attachment Fittings - Modification - CANCELLED","slug":"ad-pa-25-4-front-spar-attachment-fittings-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":75952,"registerId":"commonwealth-F2008L04077-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-25 (Pawnee) Series Aeroplanes","sectionType":"division","heading":"Piper PA-25 (Pawnee) Series Aeroplanes","content":"### Piper PA-25 (Pawnee) Series Aeroplanes\n\n| AD/PA-25/4 | Front Spar Attachment Fittings - Modification | 12/2008 |\n| ---------- | --------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                        |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 20 November 2008.                                                                                                                                                                                         |\n| Background:  | This AD specified installation of steel front spar fittings and spar hinge bolts in accordance with Piper SB No. 206 and FAA AD 62-02-06. Compliance was required before September 1971. The Australian AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n2 October 2008","sortOrder":0},{"sectionNumber":"AD/PA-25/4","sectionType":"part","heading":"AD/PA-25/4","content":"## AD/PA-25/4","sortOrder":1},{"sectionNumber":"Front Spar Attachment Fittings - Modific","sectionType":"part","heading":"Front Spar Attachment Fittings - Modification","content":"## Front Spar Attachment Fittings - Modification","sortOrder":2},{"sectionNumber":"12/2008","sectionType":"part","heading":"12/2008","content":"## 12/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2235},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the Airworthiness Directive rather than expanding it. The scope has not 'grown' beyond the original purpose; instead, the regulatory requirement has been completely removed via cancellation."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic or exceptions","Extremely short length (one page)","No substantive cross-references to other legislation (only historical background)"],"plain_english_summary":"**What this does:** This document officially cancels a previous aircraft safety rule (Airworthiness Directive AD/PA-25/4) that required structural modifications to Piper PA-25 Pawnee aeroplanes.\n\n**Who it affects:** Owners and operators of Piper PA-25 Pawnee aircraft — primarily used for agricultural spraying and towing gliders.\n\n**What the old rule required:** The original 1971 directive mandated installation of steel front spar fittings and hinge bolts to prevent wing attachment failures. Compliance was required before September 1971.\n\n**What changed:** As of **20 November 2008**, this safety modification is no longer legally required in Australia. The Civil Aviation Safety Authority has determined the directive is unnecessary and cancelled it entirely."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-25-4-front-spar-attachment-fittings-modification-cancelled","history":"/api/acts/ad-pa-25-4-front-spar-attachment-fittings-modification-cancelled/history","analysis":"/api/acts/ad-pa-25-4-front-spar-attachment-fittings-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-25-4-front-spar-attachment-fittings-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-25-4-front-spar-attachment-fittings-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-25-4-front-spar-attachment-fittings-modification-cancelled/documents"}}