{"id":"F2006B05959","name":"AD/PA-38/20 - Radio Support Installation","slug":"ad-pa-38-20-radio-support-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":136125,"registerId":"commonwealth-F2006B05959-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-38/20 - Radio Support 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-38 (Tomahawk) Series Aeroplanes\n\n \n\nAD/PA-38/20 Radio Support Installation 11/82\n\nApplicability: All model PA-38 with S/Nos. 38-78A0001 to 38-82A0091. Document:  Piper SB No. 748.\n\nCompliance: Within 25 hours time in service after 29 September, 1982.\n\n \n\nBackground:  The manufacturer has reported a condition which if undetected could result in restriction of the flight controls.\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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1158},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope addressing the specific safety defect in radio support installations for the specified Piper Tomahawk aircraft models."},"complexity_factors":["Single, clearly defined applicability (specific aircraft model and serial number range)","One straightforward compliance action (follow manufacturer service bulletin)","Simple deadline calculation based on flight hours rather than calendar dates","No nested exceptions, conditional clauses, or cross-references to other legislation"],"plain_english_summary":"**What this requires:** If you own or operate a Piper PA-38 Tomahawk aircraft with serial numbers between 38-78A0001 and 38-82A0091, you must inspect and modify the radio support installation according to Piper Service Bulletin No. 748.\n\n**Why it matters:** The manufacturer identified a defect where the radio support installation could physically jam or restrict the flight controls. If undetected, this could prevent the pilot from steering the aircraft properly, creating a serious safety risk.\n\n**When you must act:** Complete the required work within 25 hours of flying time (*time in service*) after 29 September 1982. This means you have a limited window of flight hours to comply before the aircraft must be grounded for the repair."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-38-20-radio-support-installation","history":"/api/acts/ad-pa-38-20-radio-support-installation/history","analysis":"/api/acts/ad-pa-38-20-radio-support-installation/analysis","conflicts":"/api/acts/ad-pa-38-20-radio-support-installation/conflicts","importantCases":"/api/acts/ad-pa-38-20-radio-support-installation/important-cases","documents":"/api/acts/ad-pa-38-20-radio-support-installation/documents"}}