{"id":"F2006B05583","name":"AD/PA-28/13 Amdt 3 - Aileron and Stabilator Balance Weight Assembly and Rudder Horn Assembly - Inspection","slug":"ad-pa-28-13-amdt-3-aileron-and-stabilator-balance-weight-assembly-and-rudder-horn-assembly-inspectio","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46613,"registerId":"commonwealth-F2006B05583-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-28/13 Amdt 3 - Aileron and Stabilator Balance Weight Assembly and Rudder Horn Assembly - Inspection","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nPiper PA-28 Series Aeroplanes\n\nAD/PA-28/13\n\nAmdt 3\n\n  \n\nAileron and Stabilator Balance Weight Assembly and Rudder Horn Assembly - Inspection\n\n  \n8/80\n\nApplicability: All models PA-28-140, \\-150, \\-160, \\-180 and \\-235 with S/Nos. referenced in Piper SB No. 240.\n\nRequirement: 1. Inspect in accordance with Piper SB No. 240 and take necessary action as called up in Service Bulletin.\n\n2. Remove the wing tips and visually inspect the aileron balance weight arms and attachments for cracks.\n\nCompliance: For Para. 1 \\- Aircraft which have achieved 2 years since date of manufacture, within 100 hours time in service after 31 August 1980 and thereafter at intervals not exceeding 2 years time in service.\n\nFor Para. 2 \\- Within 200 hours time in service after 31 August 1980 and thereafter at intervals not exceeding 200 hours time in service.\n\nNote: Compliance with previous issue of this AD constitutes compliance with this AD.\n\nBackground: Aileron balance weight support tubes have exhibited instances of internal corrosion and subsequent separation. Stabilator and rudder balance assemblies have demonstrated a tendency to work loose in service. This amendment references the specific affected aeroplanes and simplifies compliance statement.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1853},"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":true,"description":"This amendment narrows the scope compared to previous versions by limiting applicability to specific serial numbers listed in Piper SB No. 240, rather than applying to all aircraft of the listed models. The compliance statement language has also been simplified from earlier iterations."},"complexity_factors":["External cross-reference to Piper Service Bulletin No. 240 without reproducing technical inspection procedures","Applicability limited to specific serial numbers contained in external document","Dual compliance schedules with different triggering mechanisms (hours vs years)","Technical aviation terminology requiring domain knowledge (stabilator, rudder horn, time in service)","Amendment grandfathering clause (compliance with previous version counts)"],"plain_english_summary":"Mandatory FAA inspection for owners/operators of Piper PA‑28 Cherokees (-140, -150, -160, -180, -235). It requires inspecting aileron balance weights, stabilator balance weights, and rudder horn assemblies for internal corrosion, cracks, and looseness per Piper Service Bulletin No. 240, and removing wing tips to visually check aileron balance weight arms. Initial compliance deadlines (100 flight hours/2 years for SB items; 200 flight hours for wing‑tip inspection after 31 Aug 1980) with recurring repeats. It prevents in‑flight failure and loss of control."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-13-amdt-3-aileron-and-stabilator-balance-weight-assembly-and-rudder-horn-assembly-inspectio","history":"/api/acts/ad-pa-28-13-amdt-3-aileron-and-stabilator-balance-weight-assembly-and-rudder-horn-assembly-inspectio/history","analysis":"/api/acts/ad-pa-28-13-amdt-3-aileron-and-stabilator-balance-weight-assembly-and-rudder-horn-assembly-inspectio/analysis","conflicts":"/api/acts/ad-pa-28-13-amdt-3-aileron-and-stabilator-balance-weight-assembly-and-rudder-horn-assembly-inspectio/conflicts","importantCases":"/api/acts/ad-pa-28-13-amdt-3-aileron-and-stabilator-balance-weight-assembly-and-rudder-horn-assembly-inspectio/important-cases","documents":"/api/acts/ad-pa-28-13-amdt-3-aileron-and-stabilator-balance-weight-assembly-and-rudder-horn-assembly-inspectio/documents"}}