{"id":"F2006B05639","name":"AD/PA-28/85 - Battery Strap Installation","slug":"ad-pa-28-85-battery-strap-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135310,"registerId":"commonwealth-F2006B05639-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-28/85 - Battery Strap Installation","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Piper PA-28 Series Aeroplanes\n\n \n\nAD/PA-28/85 Battery Strap Installation 7/85\n\nApplicability: All models PA-28-180, PA-28-181, PA-28-201T, PA-28-235, PA-28-236, PA-28R-\n\n200, PA-28R-201, PA-28R-201T, PA-28RT-201T, with S/Nos referenced in Piper Service Bulletin No. 804.\n\n \n\nRequirement: Piper SB No. 804.\n\n \n\nCompliance: Within 100 hours time in service after 31 July 1985 or at the next scheduled inspection for maintenance release issue after 31 July 1985 whichever is the later.\n\n \n\nBackground: The manufacturer reports instances of the battery becoming dislodged from the battery box due to overloads imposed in severe turbulence or in a crash sequence.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1137},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope: a targeted safety modification for battery retention in specific Piper aircraft. There is no evidence of expansion beyond the original technical remedy for the stated airworthiness risk."},"complexity_factors":["Single, specific requirement referencing an external technical document (Piper Service Bulletin No. 804)","Limited applicability confined to nine specific aircraft models with enumerated serial numbers","Clear, binary compliance condition (100 hours OR next inspection)","No nested definitions, conditional exceptions, or cross-references to other legislative provisions"],"plain_english_summary":"**What this is:** An Airworthiness Directive (AD) — a mandatory safety order issued by the Civil Aviation Safety Authority (CASA) requiring aircraft owners to fix a specific mechanical defect.\n\n**Who it affects:** Owners and operators of specific **Piper PA-28 series aircraft** (including Cherokee, Archer, Dakota, Arrow and Turbo Arrow models) with serial numbers listed in Piper Service Bulletin No. 804. The affected models are PA-28-180, PA-28-181, PA-28-201T, PA-28-235, PA-28-236, PA-28R-200, PA-28R-201, PA-28R-201T, and PA-28RT-201T.\n\n**What you must do:** Install or modify the **battery strap** in accordance with Piper Service Bulletin No. 804.\n\n**Why it matters:** The manufacturer reported cases where batteries became dislodged from their boxes during severe turbulence or crashes. A loose battery can cause electrical failure, fire, or injury.\n\n**Deadline:** You must complete this work within **100 hours of flight time** after 31 July 1985, or at the next scheduled inspection for your maintenance release (whichever comes later)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-85-battery-strap-installation","history":"/api/acts/ad-pa-28-85-battery-strap-installation/history","analysis":"/api/acts/ad-pa-28-85-battery-strap-installation/analysis","conflicts":"/api/acts/ad-pa-28-85-battery-strap-installation/conflicts","importantCases":"/api/acts/ad-pa-28-85-battery-strap-installation/important-cases","documents":"/api/acts/ad-pa-28-85-battery-strap-installation/documents"}}