{"id":"F2006B08445","name":"AD/CESSNA 650/2 - Airborne Auxiliary Power - Inspection of Main Fuel Manifold","slug":"ad-cessna-650-2-airborne-auxiliary-power-inspection-of-main-fuel-manifold","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115942,"registerId":"commonwealth-F2006B08445-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 650/2 - Airborne Auxiliary Power - Inspection of Main Fuel Manifold","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 650 (Citation III) Series Aeroplanes\n\n \n\n# AD/CESSNA650/2 Airborne Auxiliary Power - Inspection\n\nof Main Fuel Manifold\n\nApplicability: Cessna 650 (Citation III) Series.\n\n# 13/90\n\n \n\nRequirement: Action Cessna Service Letter SL650-49-17 which refers to Sunstrand Power Systems Service Bulletin SB-T-62-T-49-74.\n\n \n\nCompliance: Effective 27 December 1990. Within 10 days, and thereafter at intervals not to exceed 50 hours of APU operation.\n\n \n\nBackground: Auxiliary Power Unit (APU) models listed in SB-T-62T-49-74 could possibly have breakage/leakage of the main fuel manifold. Cracking and/or breakage of the main fuel manifold has been reported. This may result in fuel being sprayed onto the APU resulting in the possibility of fire.\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":1373},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive appears to be the original 1990 instrument (marked 13/90) with no evident amendments. The scope remains tightly confined to the specific APU fuel manifold inspection as originally mandated, without expansion to other aircraft systems or models."},"complexity_factors":["Single, clearly defined applicability (one aircraft model)","Short length (approximately 150 words)","Simple compliance structure (initial deadline + recurring interval)","Direct incorporation of external technical standards without complex machinery or conditions","No nested exceptions or defined terms section"],"plain_english_summary":"**What this means:** If you own or operate a **Cessna 650 (Citation III) aircraft**, you must inspect the fuel pipe (called the \"main fuel manifold\") on the Auxiliary Power Unit (APU) — that's the small engine that provides power when the main engines are off.\n\n**Why:** The fuel manifold can crack or break, spraying fuel onto the hot APU and potentially causing a **fire**.\n\n**What you must do:**\n- Follow the inspection steps in **Cessna Service Letter SL650-49-17** and **Sunstrand Power Systems Service Bulletin SB-T-62-T-49-74** (these are technical manuals referenced by the law)\n- Do the first inspection **within 10 days** of the directive taking effect\n- Then repeat the inspection **every 50 hours** the APU runs\n\n**Who is affected:** Owners and operators of Cessna 650 series aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-650-2-airborne-auxiliary-power-inspection-of-main-fuel-manifold","history":"/api/acts/ad-cessna-650-2-airborne-auxiliary-power-inspection-of-main-fuel-manifold/history","analysis":"/api/acts/ad-cessna-650-2-airborne-auxiliary-power-inspection-of-main-fuel-manifold/analysis","conflicts":"/api/acts/ad-cessna-650-2-airborne-auxiliary-power-inspection-of-main-fuel-manifold/conflicts","importantCases":"/api/acts/ad-cessna-650-2-airborne-auxiliary-power-inspection-of-main-fuel-manifold/important-cases","documents":"/api/acts/ad-cessna-650-2-airborne-auxiliary-power-inspection-of-main-fuel-manifold/documents"}}