{"id":"F2006B08105","name":"AD/CESSNA 210/56 Amdt 1 - Fuel Filler Caps and Adaptors","slug":"ad-cessna-210-56-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":115215,"registerId":"commonwealth-F2006B08105-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 210/56 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 210 Series Aeroplanes\n\nAD/CESSNA 210/56\n\nAmdt 1\n\n  \nFuel Filler Caps and Adaptors 11/88\n\nApplicability: Models with serial numbers: 21057001 through 21058818 (1960-1966) T210-0001 through T210-0197 (1966); unless reduced diameter, raised filler neck fuel caps are installed on all filler openings in accordance with Cessna Service Kit SK182-85 (refer\n\nS.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 removing the water-ingress testing requirement for aircraft with raised filler necks, but this is a routine refinement rather than scope creep. The core purpose — ensuring fuel cap integrity to prevent leaks — remains unchanged."},"complexity_factors":["Single, specific applicability criterion based on aircraft serial numbers","One clear exemption condition (raised filler neck caps with specific service kit)","Six numbered procedural requirements, all visual inspections or standard tests","Single cross-reference to external Cessna document (SIL SE 82-34) for the leak test procedure","Simple compliance deadline tied to Maintenance Release cycle","No nested definitions, no conditional logic within requirements, no internal cross-references to other sections of the Regulations"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of specified Cessna 210 series (serials 21057001–21058818 and T210‑0001–T210‑0197) to inspect and test wing fuel filler caps and adaptors to prevent in‑flight fuel leaks. Inspections/tests must be done before the next Maintenance Release after 30 June 1985 and at every subsequent Maintenance Release. Aircraft modified with Cessna Service Kit SK182‑85 are exempt from the original water‑ingress test under the amendment."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"The amendment narrows scope relative to the prior requirement by deleting extensive inspections/testing for water ingress on aeroplanes fitted with raised fuel filler necks (Background). It retains targeted inspection and leak-test obligations for listed serial-numbered Cessna 210 models unless the aircraft has been fitted with Service Kit SK182-85 (Applicability; Requirement; Compliance)."},"complexity_factors":["Targeted applicability to specific serial-number ranges and an exemption if Service Kit SK182-85 is installed (Applicability).","Multiple distinct inspection and test actions required (Requirement paragraphs 1–6), increasing procedural steps for maintenance staff.","Mandated fuel-cap leak test referencing external guidance (Cessna SIL SE 82-34), creating dependency on an external technical document (Requirement 6).","Recurring compliance tied to issuance of a Maintenance Release (Compliance), which imposes ongoing scheduling and record-keeping.","Technical judgements required (seal cracking, adaptor distortion, adhesive security) that may need specialist assessment or part replacement (Requirements 2–4).","Amendment narrows prior scope by removing extensive water-ingress inspections for raised filler neck installations, changing prior inspection risk profile (Background)."],"plain_english_summary":"This airworthiness directive requires owners/operators of specified Cessna 210 series aeroplanes to inspect fuel filler caps and adaptors for leakage and seal/locking integrity and to perform a fuel-cap leak test per Cessna SIL SE 82‑34. Compliance is required before the next Maintenance Release after 30 June 1985 and at each subsequent Maintenance Release.\n\nOwners/operators bear inspection and testing costs and must schedule checks into Maintenance Releases. The amendment removes prior water‑ingress testing for aircraft with raised filler necks and notes an exemption when Service Kit SK182‑85 is installed."},"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-210-56-amdt-1-fuel-filler-caps-and-adaptors","history":"/api/acts/ad-cessna-210-56-amdt-1-fuel-filler-caps-and-adaptors/history","analysis":"/api/acts/ad-cessna-210-56-amdt-1-fuel-filler-caps-and-adaptors/analysis","conflicts":"/api/acts/ad-cessna-210-56-amdt-1-fuel-filler-caps-and-adaptors/conflicts","importantCases":"/api/acts/ad-cessna-210-56-amdt-1-fuel-filler-caps-and-adaptors/important-cases","documents":"/api/acts/ad-cessna-210-56-amdt-1-fuel-filler-caps-and-adaptors/documents"}}