{"id":"F2006B05175","name":"AD/CESSNA 188/40 Amdt 1 - Fuel Filler Caps and Adaptors","slug":"ad-cessna-188-40-amdt-1-fuel-filler-caps-and-adaptors","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45318,"registerId":"commonwealth-F2006B05175-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 188/40 Amdt 1 - Fuel Filler Caps and Adaptors","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 188 (Agwagon) Series Aeroplanes\n\nAD/CESSNA 188/40\n\nAmdt 1\n\n  \nFuel Filler Caps and Adaptors 11/88\n\nApplicability: Models with serial numbers:\n\n188-0446 through 18803856 (1968-1981) (wing tanks only) 18800967T through 18803966T (1972-1983),\n\nT18803307T through T18803966T (1979-1983);\n\nunless reduced diameter, raised filler neck fuel caps are installed on all filler openings in accordance with Cessna Service Kit SK182-85 (refer S.I.L SE 84-16).\n\nRequirement: 1. Visually inspect the wing aft of the fuel filler for indications of inflight fuel leakage.\n\n    2. Visually inspect the fuel cap locking mechanism and seals for cracking, distortion and any condition which might prevent sealing.\n\n    3. Remove the fuel filler caps and inspect the adaptor sealing face for distortion, scratches, corrosion or any condition which may prevent the cap from sealing.\n\n    4. Visually check the sealing and security of the attachment of the adaptor flange to the adaptor plate paying particular attention to the adhesive (if present) between the parts.\n\n    5. Check the fuel cap seal by actuating the locking tab and noting that force is maintained between the cap, seal and adaptor when the tab is in the over-centre locking position.\n\n    6. Conduct a fuel cap leak test in accordance with Cessna SIL SE 82-34.\n\nCompliance: Prior to the issue of the next Maintenance Release after 30 June 1985 and thereafter at each issue of a new Maintenance Release.\n\nBackground: This Amendment deletes the requirement for extensive inspection and testing of fuel filler caps against possible water ingress, for aeroplanes fitted with raised fuel filler necks.","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":3,"scope_assessment":{"changed":true,"description":"This is Amendment 1 to an existing directive. The original directive apparently required extensive inspection and testing for all aircraft. This amendment narrows the scope by exempting aircraft that have been modified with raised fuel filler necks, reducing the regulatory burden for upgraded aircraft while maintaining safety standards."},"complexity_factors":["Multiple serial number ranges with overlapping years requiring careful cross-referencing","Conditional applicability based on whether specific service kit modifications have been installed","Six distinct inspection requirements with technical aviation terminology","Reference to external Cessna documents (Service Kit SK182-85, SIL SE 84-16, SIL SE 82-34) without reproducing their content","Compliance deadline tied to regulatory document cycle (Maintenance Release) rather than calendar date alone"],"plain_english_summary":"This AD requires owners/operators of Cessna 188 \"Agwagon\" aircraft (1968–1983 serials listed in the AD) to inspect and test fuel filler caps and adaptors to prevent in‑flight fuel leaks. Compliance is required before the next Maintenance Release issued after 30 June 1985 and with every subsequent Maintenance Release, unless the aircraft already has the upgraded reduced‑diameter, raised filler neck caps installed via the specified Cessna service kit. The change removes needless tests for upgraded aircraft."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This amendment narrows prior obligations by deleting the requirement for extensive water‑ingress inspection/testing for aeroplanes fitted with raised filler necks (those modified by Service Kit SK182‑85). It retains mandatory inspections and a leak test for the other listed aircraft and sets Compliance to the next and subsequent Maintenance Releases."},"complexity_factors":["Applicability limited to specific serial-number ranges and variants (multiple ranges listed) — requires operators to check serials against the AD.","Technical inspections include visual checks and a leak test specified by an external Cessna Service Instruction (SIL SE 82‑34), increasing dependency on non-statutory documents.","Interaction with a service-kit exemption (SK182‑85) — presence of the kit changes inspection obligations.","Compliance timing tied to Maintenance Release issuance (administrative scheduling across operators and maintenance organisations).","Subjectivity of visual inspection criteria (e.g. 'indications of inflight fuel leakage', 'any condition which might prevent sealing') may require judgment by maintenance personnel."],"plain_english_summary":"**AD/CESSNA 188/40 Amdt 1** requires operators of certain Cessna 188 series aeroplanes to inspect and test fuel filler caps, adaptor seals and locking mechanisms and to perform a fuel-cap leak test in accordance with Cessna SIL SE 82‑34. Compliance must be done before the next Maintenance Release after 30 June 1985 and at every subsequent Maintenance Release.\n\nThe amendment removes a prior requirement for extensive water‑ingress inspection and testing for aeroplanes fitted with raised filler necks modified by Service Kit SK182‑85."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-188-40-amdt-1-fuel-filler-caps-and-adaptors","history":"/api/acts/ad-cessna-188-40-amdt-1-fuel-filler-caps-and-adaptors/history","analysis":"/api/acts/ad-cessna-188-40-amdt-1-fuel-filler-caps-and-adaptors/analysis","conflicts":"/api/acts/ad-cessna-188-40-amdt-1-fuel-filler-caps-and-adaptors/conflicts","importantCases":"/api/acts/ad-cessna-188-40-amdt-1-fuel-filler-caps-and-adaptors/important-cases","documents":"/api/acts/ad-cessna-188-40-amdt-1-fuel-filler-caps-and-adaptors/documents"}}