{"id":"F2008L01894","name":"AD/PA-28/88 Amdt 3 - Aft Centre of Gravity Restriction - CANCELLED","slug":"ad-pa-28-88-amdt-3-aft-centre-of-gravity-restriction-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74122,"registerId":"commonwealth-F2008L01894-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-28 Series Aeroplanes","sectionType":"division","heading":"Piper PA-28 Series Aeroplanes","content":"### Piper PA-28 Series Aeroplanes\n\n| AD/PA-28/88 Amdt 3 | Aft Centre of Gravity Restriction | 7/2008 |\n| ------------------ | --------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                        |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 3 July 2008.                                                                                                                                                                                                                                              |\n| Background:  | This unique Australian AD required once-only modification of the wing in accordance with Piper SB No. 611 to restore the original aft CG limitation. The AD required compliance by September 1991. As all affected aircraft have now been modified this AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n20 May 2008","sortOrder":0},{"sectionNumber":"AD/PA-28/88 Amdt 3","sectionType":"part","heading":"AD/PA-28/88 Amdt 3","content":"## AD/PA-28/88 Amdt 3","sortOrder":1},{"sectionNumber":"Aft Centre of Gravity Restriction","sectionType":"part","heading":"Aft Centre of Gravity Restriction","content":"## Aft Centre of Gravity Restriction","sortOrder":2},{"sectionNumber":"7/2008","sectionType":"part","heading":"7/2008","content":"## 7/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1604},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"This amendment completely cancels the Airworthiness Directive, removing the previous compliance obligation that required wing modifications to restore original aft centre of gravity limitations. The instrument has shifted from an active safety mandate to a historical revocation notice."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No cross-references to other legislation","No conditional logic or exceptions"],"plain_english_summary":"This document formally cancels a former aviation safety rule that applied to **Piper PA-28 aircraft** (light single-engine planes commonly used for flight training and private aviation).\n\nThe original rule required owners to perform a **once-only modification to the aircraft's wings** to fix a **centre of gravity** problem (a weight balance issue that could affect flight safety). This modification had to be completed by September 1991.\n\n**Why it matters now:**\n* This amendment cancels the rule entirely as of 3 July 2008\n* Since all affected aircraft were modified decades ago, the safety requirement is no longer necessary\n* Aircraft owners and operators no longer have any obligations under this directive"}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-88-amdt-3-aft-centre-of-gravity-restriction-cancelled","history":"/api/acts/ad-pa-28-88-amdt-3-aft-centre-of-gravity-restriction-cancelled/history","analysis":"/api/acts/ad-pa-28-88-amdt-3-aft-centre-of-gravity-restriction-cancelled/analysis","conflicts":"/api/acts/ad-pa-28-88-amdt-3-aft-centre-of-gravity-restriction-cancelled/conflicts","importantCases":"/api/acts/ad-pa-28-88-amdt-3-aft-centre-of-gravity-restriction-cancelled/important-cases","documents":"/api/acts/ad-pa-28-88-amdt-3-aft-centre-of-gravity-restriction-cancelled/documents"}}