{"id":"F2008L01797","name":"AD/CESSNA 180/28 Amdt 1 - Aileron Mass Balance Weight Attachment Rivets - CANCELLED","slug":"ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":73953,"registerId":"commonwealth-F2008L01797-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 180, 182 and Wren 460 Series Aero","sectionType":"division","heading":"Cessna 180, 182 and Wren 460 Series Aeroplanes","content":"### Cessna 180, 182 and Wren 460 Series Aeroplanes\n\n| AD/CESSNA 180/28 Amdt 1 | Aileron Mass BalanceWeight Attachment Rivets | 7/2008 |\n| ----------------------- | -------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                       |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 3 July 2008.                                                                                                                                                                                                                                                             |\n| Background:  | This unique Australian AD, issued in 1972, required a repeat inspection every 100 hours of the aileron mass balance weight attachment rivets. As only one defect has been reported since 1980 and the inspection should be carried out during normal maintenance, this AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n22 May 2008","sortOrder":0},{"sectionNumber":"AD/CESSNA 180/28 Amdt 1","sectionType":"part","heading":"AD/CESSNA 180/28 Amdt 1","content":"## AD/CESSNA 180/28 Amdt 1","sortOrder":1},{"sectionNumber":"Aileron Mass BalanceWeight Attachment Ri","sectionType":"part","heading":"Aileron Mass BalanceWeight Attachment Rivets","content":"## Aileron Mass Balance  \nWeight Attachment Rivets","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":2705},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The scope has not expanded; instead, this amendment eliminates the original 1972 requirements entirely. The directive has been reduced from mandating periodic inspections to imposing no requirements whatsoever."},"complexity_factors":["Single operative provision (cancellation only)","No active regulatory requirements or obligations imposed","No definitions section or technical interpretative provisions","No cross-references to other legislative instruments"],"plain_english_summary":"This document officially scraps a previous aviation safety rule that required owners of certain light aircraft to perform a specific inspection.\n\n**What it affects**: Owners and operators of **Cessna 180, Cessna 182, and Wren 460 series** aeroplanes.\n\n**What it does**: It removes the requirement to inspect the **aileron mass balance weight attachment rivets** (the small screws or fasteners holding counterweights on the wing control surfaces that prevent dangerous shaking) every 100 hours of flight time.\n\n**Why it matters**: The original rule was created in 1972 due to safety concerns about these rivets coming loose. However, only one defect has been reported since 1980, and these parts are now checked during routine maintenance anyway. Cancelling this rule reduces unnecessary paperwork and inspection costs for aircraft owners without compromising safety."},"summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument simply cancels an existing AD; it does not amend, replace or create any other legislative or regulatory requirement."},"complexity_factors":["Cancellation only, no new obligations","Narrowly targeted at three aircraft series","Self-contained instrument with immediate effect"],"plain_english_summary":"This instrument cancels Airworthiness Directive AD/CESSNA 180/28, which applied to Cessna 180, 182 and Wren 460 series aeroplanes. The original directive, issued in 1972, required a specific inspection of the aileron mass balance weight attachment rivets every 100 flight hours. The Civil Aviation Safety Authority (CASA) cancelled the directive on 3 July 2008 because only one defect had been reported since 1980 and the inspection should be carried out during normal maintenance. Aircraft owners and operators of those models no longer need to comply with the AD as a separate periodic requirement; the cancellation removes a duplicate regulatory task without affecting airworthiness, because the inspection remains part of standard maintenance practices. The change reduces administrative burden for operators and maintainers while preserving safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets-cancelled","history":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets-cancelled/history","analysis":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets-cancelled/analysis","conflicts":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets-cancelled/conflicts","importantCases":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets-cancelled/important-cases","documents":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets-cancelled/documents"}}