{"id":"F2006B08310","name":"AD/CESSNA 400/22 - Rudder Pedal Torque Tube - Modification","slug":"ad-cessna-400-22-rudder-pedal-torque-tube-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115714,"registerId":"commonwealth-F2006B08310-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/22 - Rudder Pedal Torque Tube - Modification","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)  Cessna 400 Series Aeroplanes\n\n \n\nAD/CESSNA 400/22 Rudder Pedal Torque Tube - Modification 5/71\n\nApplicability: All models with S/Nos. as listed in requirement document. Document:  Cessna SL ME71-1.\n\nCompliance: 1. For aircraft fitted with internal rudder gust lock - within 100 hours time in service after 30 June 1971.\n\n \n\n2.    For aircraft not fitted with internal rudder gust lock -\n\n \n\n(a)     Within 100 hours time in service after 30 June 1971 for aircraft in excess of 1000 hours time in service as at 30 June 1971.\n\n \n\n(b)     Before exceeding 1100 hours time in service for aircraft with less than 1000 hours time in service.\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":2334},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive remains focused on its original purpose: mandating a specific safety modification to rudder pedal torque tubes on affected Cessna 400 series aircraft. No evidence of scope expansion beyond the original technical requirement."},"complexity_factors":["Simple binary condition based on equipment configuration (presence of internal rudder gust lock)","Straightforward time-based compliance calculations using flight hours and specific date threshold","Single external technical document incorporated by reference (Cessna SL ME71-1)","No defined terms section or nested legislative cross-references"],"plain_english_summary":"This mandatory AD requires owners/operators of specified Cessna 400 series aircraft (see Cessna Service Letter ME71-1) to modify the rudder pedal torque tube per the manufacturer’s instructions. \n\nCompliance timing depends on aircraft status as of 30 June 1971: aircraft with an internal rudder gust lock or high-time aircraft (>1,000 hours) must comply within 100 flight hours; low-time aircraft must comply before reaching 1,100 total hours. The change prevents rudder-control failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-22-rudder-pedal-torque-tube-modification","history":"/api/acts/ad-cessna-400-22-rudder-pedal-torque-tube-modification/history","analysis":"/api/acts/ad-cessna-400-22-rudder-pedal-torque-tube-modification/analysis","conflicts":"/api/acts/ad-cessna-400-22-rudder-pedal-torque-tube-modification/conflicts","importantCases":"/api/acts/ad-cessna-400-22-rudder-pedal-torque-tube-modification/important-cases","documents":"/api/acts/ad-cessna-400-22-rudder-pedal-torque-tube-modification/documents"}}