{"id":"F2006B05982","name":"AD/PA-42/16 - Control Column Control Chain Retainer Clips","slug":"ad-pa-42-16-control-column-control-chain-retainer-clips","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":136186,"registerId":"commonwealth-F2006B05982-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-42/16 - Control Column Control Chain Retainer Clips","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-42 (Cheyenne III) Series Aeroplanes\n\n \n\nAD/PA-42/16 Control Column Control Chain Retainer Clips 8/88\n\nApplicability: PA42-720R, PA42-720 and PA42-1000 with Serial Numbers listed in the Requirement Document.\n\n \n\nRequirement: Action in accordance with Piper SB 877.\n\n \n\nCompliance: Prior to the next inspection for Maintenance Release issue after 11 August 1988.\n\n \n\nBackground:  It has been determined that some retainer clips may be improperly installed. Loss of the retainer clip may cause control run disconnection and loss of aileron control.\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":1657},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive maintains a narrow, targeted scope focused solely on the specific safety defect involving control column chain retainer clips in the specified aircraft models. There is no evidence of scope expansion beyond the original mechanical safety issue."},"complexity_factors":["Single-page directive with no defined terms or interpretation section","Minimal conditional logic—applicability is limited to specific aircraft models and serial numbers","Only one external reference (Piper SB 877) with no nested cross-references","Simple, unambiguous compliance deadline tied to the maintenance release schedule","No exceptions, exemptions, or complex procedural requirements"],"plain_english_summary":"**What this does:** This is a safety order (Airworthiness Directive) that mandates an urgent inspection and repair of control column parts on specific Piper Cheyenne III aircraft.\n\n**Who it affects:** Owners, operators, and maintenance providers of Piper PA-42-720R, PA-42-720, and PA-42-1000 aircraft with serial numbers listed in Piper Service Bulletin 877.\n\n**What must be done:** Before the aircraft's next maintenance release after 11 August 1988, the control column control chain retainer clips must be inspected and corrected in accordance with Piper Service Bulletin 877.\n\n**Why it matters:** The clips that hold the control chains in place may have been installed incorrectly. If a clip falls out, the control chain can disconnect, causing the pilot to lose control of the ailerons (the wing flaps that make the aircraft turn or roll). This could lead to loss of control of the aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-42-16-control-column-control-chain-retainer-clips","history":"/api/acts/ad-pa-42-16-control-column-control-chain-retainer-clips/history","analysis":"/api/acts/ad-pa-42-16-control-column-control-chain-retainer-clips/analysis","conflicts":"/api/acts/ad-pa-42-16-control-column-control-chain-retainer-clips/conflicts","importantCases":"/api/acts/ad-pa-42-16-control-column-control-chain-retainer-clips/important-cases","documents":"/api/acts/ad-pa-42-16-control-column-control-chain-retainer-clips/documents"}}