{"id":"F2006B08297","name":"AD/CESSNA 400/11 Amdt 2 - Fuel System-Placards","slug":"ad-cessna-400-11-amdt-2-fuel-system-placards","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115628,"registerId":"commonwealth-F2006B08297-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/11 Amdt 2 - Fuel System-Placards","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 400/11\n\nAmdt 2\n\n  \nFuel System-Placards 8/92\n\nApplicability: All models 401, 401A, 402, 402A, 411, 411A, 421 and 421A not incorporating Cessna SL ME69-16.\n\nRequirement: 1 (a). On all models, a placard reading “Operation With Less Than Ten (10) Gallons of Fuel in Each Main Tank is Prohibited” is to be placed in full view of the pilot as near as possible to the main fuel quantity indictor.\n\nNote: This requirement reduces the usable capacity of each main tank to 40 U.S. Gallons.\n\n1 (b). On all models, a placard reading “Maintain Power Within Green Arcs During Descent” is to be placed in full view of the pilot and as near as possible to the manifold pressure gauge.\n\n1 (c). On all models a placard reading “Maximum Speed with 15 Degrees to Full Flap Shall Not Exceed 126Kts” is to be placed in full view of the pilot and as near as possible to the airspeed indicator.\n\n2. Unless previously carried out modify main fuel tanks in accordance with Cessna SL ME69-16.\n\nNote 1: The operator may make and certify the installation of the above placards. Letters of one eight inch minimum height shall be used.\n\nNote 2: The placards may be removed following incorporation of Cessna SL ME69- 16 relating to the installation of additional booster pumps.\n\nNote 3: FAA AD 69-14-01 amdt 39-793 refers.\n\nCompliance: 1. Requirement 1 (a) to (c), inclusive. Forthwith.\n\n2. Prior to 30 June 1993.\n\nBackground: This amendment raised to provide terminating action for this Directive.","sortOrder":0}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is Amendment 2 to an existing Airworthiness Directive. The background explicitly states this amendment was made to provide 'terminating action' — meaning it adds an endpoint to the directive (allowing placard removal after modification). This is a natural evolution of the original safety measure, not scope creep. The core purpose (addressing fuel system safety in Cessna 400 series aircraft) remains unchanged from the original AD."},"complexity_factors":["Very short document (under 300 words)","Only 3 substantive requirements plus 1 modification requirement","Minimal defined terms (only aircraft models specified)","No cross-references to other legislation beyond a single FAA AD reference in a note","Simple conditional logic (applies to aircraft 'not incorporating' a specific modification)","Clear compliance deadlines ('Forthwith' and specific date)","Straightforward structure: applicability, requirements, notes, compliance, background"],"plain_english_summary":"This AD applies to Cessna 400-series twins that have not received factory modification SL ME69-16. It requires cockpit warning placards about minimum fuel (10 gallons per main tank), descent power limits, and a flap speed limit, and mandates fuel‑tank modification per Cessna service bulletin.\n\nIt affects owners, operators and pilots of those models and matters because the placards provide an immediate safety mitigation against fuel/system risks until the permanent tank modification is completed."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This amendment adds explicit, short‑term placard requirements and sets Cessna SL ME69-16 modification as the terminating action. It therefore changes the directive from a standalone placard measure to a two-step regime: immediate pilot warnings plus a mandated hardware modification by a stated deadline, after which the placards may be removed (Requirements 1(a)–(c), 2; Notes 1–2; Background)."},"complexity_factors":["Limited technical scope: fixed placard wording, locations and minimum letter size reduce interpretive ambiguity (Req 1(a)–(c); Note 1).","Interplay with a terminating action: modification per Cessna SL ME69-16 removes the placard requirement, creating a compliance path and timing trade-off (Req 2; Note 2).","Applicability limited to specific models and to aeroplanes not incorporating SL ME69-16, requiring record checks (Applicability).","Compliance timing split between immediate action (placards) and a future modification deadline, imposing staged obligations (Compliance).","Cross-reference to FAA AD and a service letter introduces reliance on external technical documents for the terminating modification (Note 3; Req 2)."],"plain_english_summary":"This airworthiness directive requires operators of specified Cessna 400-series aeroplanes that have not incorporated Cessna Service Letter ME69-16 to install three specific placards in full view of the pilot (near the fuel gauge, manifold pressure gauge and airspeed indicator) and to modify main fuel tanks per SL ME69-16 unless already done. Placards must be fitted immediately; the tank modification is required by the deadline. Operators make and certify placard installations; placards may be removed after the modification is completed (Requirements 1(a)–(c), 2; Notes 1–2; Compliance)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-11-amdt-2-fuel-system-placards","history":"/api/acts/ad-cessna-400-11-amdt-2-fuel-system-placards/history","analysis":"/api/acts/ad-cessna-400-11-amdt-2-fuel-system-placards/analysis","conflicts":"/api/acts/ad-cessna-400-11-amdt-2-fuel-system-placards/conflicts","importantCases":"/api/acts/ad-cessna-400-11-amdt-2-fuel-system-placards/important-cases","documents":"/api/acts/ad-cessna-400-11-amdt-2-fuel-system-placards/documents"}}