{"id":"F2006B08312","name":"AD/CESSNA 400/26 - Engine Nacelle Wiring - Inspection","slug":"ad-cessna-400-26-engine-nacelle-wiring-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115719,"registerId":"commonwealth-F2006B08312-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/26 - Engine Nacelle Wiring - 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)  \nCessna 400 Series Aeroplanes\n\nAD/CESSNA 400/26 Engine Nacelle Wiring \\- Inspection 7/71\n\nApplicability: Models 401 and 402 with S/Nos. \\-0001 to 0260 except 401-0218 and 402-0242.\n\nRequirement: 1. (a) Visually inspect the insulating material of the electrical wiring, grommets and clamps located in the engine nacelles between the canted bulkhead and the firewall for charred, burnt or heat hardened conditions.\n\n    (b) Visually inspect the heat shields located in the engine nacelles between the canted bulkhead and the firewall for deterioration or improper installation and/or attachment that could contribute to excessive heat in this area.\n\n    2. Modify the engine nacelles in accordance with Cessna SL ME68-17.\n\nCompliance: For Para. 1 - Within 100 hours time in service after 30 July 1971 and thereafter at intervals not exceeding 100 hours time in service until modified in accordance with para. 2.\n\nFor Para. 2 \\- Before 1 February 1972.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1877},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow technical scope focused solely on fire-prevention measures (wiring inspection and heat shield modifications) for specific Cessna 400 series aircraft models."},"complexity_factors":["Narrow applicability limited to two specific aircraft models with defined serial number ranges (only 258 aircraft affected)","Straightforward two-step requirement structure (inspect, then modify)","Single external technical reference (Cessna Service Letter ME68-17)","Clear, unambiguous compliance timeframe with no conditional exceptions or nested definitions"],"plain_english_summary":"This Airworthiness Directive from the Civil Aviation Safety Authority applies to Cessna 401 and 402 aircraft serials 0001–0260 (excluding 401‑0218 and 402‑0242). It requires inspection of engine-nacelle wiring, grommets, clamps and heat shields and a mandated modification per Cessna Service Letter ME68‑17. Inspections start within 100 flight hours after 30 July 1971 and repeat every 100 hours until the modification—required by 1 February 1972—to prevent in‑flight fires and electrical failures."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-26-engine-nacelle-wiring-inspection","history":"/api/acts/ad-cessna-400-26-engine-nacelle-wiring-inspection/history","analysis":"/api/acts/ad-cessna-400-26-engine-nacelle-wiring-inspection/analysis","conflicts":"/api/acts/ad-cessna-400-26-engine-nacelle-wiring-inspection/conflicts","importantCases":"/api/acts/ad-cessna-400-26-engine-nacelle-wiring-inspection/important-cases","documents":"/api/acts/ad-cessna-400-26-engine-nacelle-wiring-inspection/documents"}}