{"id":"F2006B05132","name":"AD/CESSNA 185/40 Amdt 1 - Fuel Filler Caps and Adaptors","slug":"ad-cessna-185-40-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":45178,"registerId":"commonwealth-F2006B05132-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 185/40 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 185 Series Aeroplanes\n\nAD/CESSNA 185/40\n\nAmdt 1\n\n  \nFuel Filler Caps and Adaptors 11/88\n\nApplicability: Models with serial number:\n\n185-0001 through 18503683 (1961-1978),\n\n18503684 through 18504414 (1979-1983) (optional tanks only);\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":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment narrows the scope slightly from the original directive by exempting aircraft with raised fuel filler necks, but this is a standard refinement rather than scope creep. The directive remains tightly focused on its original purpose: ensuring fuel filler cap integrity on Cessna 185 aircraft."},"complexity_factors":["Single, specific applicability section with serial number ranges and date brackets","One clear exemption condition (raised filler neck caps with specific service kit)","Six numbered, sequential requirements with no nested conditions or cross-references to other legislation","Only one external document reference (Cessna SIL SE 82-34) for the leak test procedure","Simple compliance timeline: one initial deadline plus recurring requirement at each Maintenance Release","No defined terms section — all language is technical but self-explanatory in context","Background section provides clear rationale for the amendment"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of Cessna 185 aircraft (S/N 185‑0001 to 18504414) to inspect and leak‑test fuel filler caps and adaptors to prevent in‑flight fuel leaks and fire hazards. Aircraft already fitted with the raised‑neck, reduced‑diameter caps per the specified Cessna kit are exempt.\n\nInspections must be done before the next Maintenance Release after 30 June 1985 and thereafter at each Maintenance Release."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The amendment narrows scope for aircraft fitted with reduced-diameter, raised filler necks installed in accordance with Cessna Service Kit SK182-85 by deleting the prior requirement for extensive inspection and testing against possible water ingress. For all other listed serial-numbered Cessna 185 aeroplanes the inspection and leak-test requirements remain (Applicability; Background)."},"complexity_factors":["Applicability defined by serial-number ranges with an exception for aircraft fitted with reduced-diameter, raised filler necks per Cessna Service Kit SK182-85 (Applicability).","Multiple specific inspection actions (visual checks of wing aft of filler, cap locking mechanism/seals, adaptor sealing face, adaptor flange attachment, seal force via locking tab) plus a referenced leak test (Requirement 1–6).","Compliance timing tied to Maintenance Release events (first due before the next Maintenance Release after 30 June 1985 and thereafter at each new Maintenance Release), creating a recurring compliance trigger (Compliance).","Technical judgment required by maintenance personnel to assess cracking, distortion, corrosion, adhesive security and sealing effectiveness — subjective assessments affecting accept/reject decisions (Requirement 1–6).","External technical references required for the leak test and exception (Cessna SIL SE 82-34 for the leak test; Cessna Service Kit SK182-85 for the raised-neck exception) which impose reliance on manufacturer documents not reproduced in the directive (Requirement; Applicability).","Amendment narrows prior obligations by deleting extensive inspection/testing for aircraft with raised filler necks, changing the population subject to the heavier requirement (Background)."],"plain_english_summary":"This airworthiness directive requires owners/operators and maintenance personnel of specified Cessna 185 series aeroplanes to inspect fuel filler caps, adaptors, seals and locking mechanisms and to perform a fuel-cap leak test. Compliance is due before the next Maintenance Release after 30 June 1985 and at each subsequent Maintenance Release. The amendment removes a prior requirement for extensive inspection/testing for aeroplanes fitted with raised filler necks installed per Cessna Service Kit SK182-85."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-185-40-amdt-1-fuel-filler-caps-and-adaptors","history":"/api/acts/ad-cessna-185-40-amdt-1-fuel-filler-caps-and-adaptors/history","analysis":"/api/acts/ad-cessna-185-40-amdt-1-fuel-filler-caps-and-adaptors/analysis","conflicts":"/api/acts/ad-cessna-185-40-amdt-1-fuel-filler-caps-and-adaptors/conflicts","importantCases":"/api/acts/ad-cessna-185-40-amdt-1-fuel-filler-caps-and-adaptors/important-cases","documents":"/api/acts/ad-cessna-185-40-amdt-1-fuel-filler-caps-and-adaptors/documents"}}