{"id":"F2006B05286","name":"AD/CESSNA 207/27 Amdt 1 - Fuel Filler Caps and Adaptors","slug":"ad-cessna-207-27-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":45684,"registerId":"commonwealth-F2006B05286-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 207/27 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 207 Series Aeroplanes\n\nAD/CESSNA 207/27\n\nAmdt 1\n\n  \nFuel Filler Caps and Adaptors 11/88\n\nApplicability: Models with serial numbers: 20700001 through 20700771 (1969-1984); unless 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 is a narrow, technical airworthiness directive focused specifically on fuel filler cap inspections for one aircraft model. The amendment slightly narrows the scope by exempting already-upgraded aircraft from certain testing, but this is consistent with the original safety purpose — it does not represent scope creep beyond the original intent of preventing fuel leaks."},"complexity_factors":["Single, clearly numbered requirement list (6 items)","One applicability exception with cross-reference to Cessna Service Kit SK182-85 and Service Information Letter SE 84-16","One compliance deadline with ongoing periodic requirement","Brief background explaining the amendment's purpose","No defined terms section, no nested conditional logic, no internal cross-references within the instrument itself"],"plain_english_summary":"Owners/operators of Cessna 207s (serials 20700001–20700771) must perform six specific inspections of fuel filler caps and mounting adaptors at the next Maintenance Release after 30 June 1985 and at every subsequent Release to detect leaks, damage, and sealing faults. Aircraft fitted with the upgraded reduced-diameter raised filler neck caps via Cessna SK182-85 are exempt. The directive addresses in-flight fuel-leak/fire and engine-fuel-starvation risks; Amendment 1 eases testing for already-upgraded aircraft."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This amendment narrows the previous scope by deleting the requirement for extensive water-ingress inspection/testing for aeroplanes fitted with raised fuel filler necks (Background). It instead prescribes a defined set of inspections and a leak test for Cessna 207 serials 20700001–20700771, except where raised-diameter, raised-filler-neck caps have been installed in accordance with Service Kit SK182-85 (Applicability, Requirement, Background). Owners/operators bear inspection and testing costs; compliance is mandated at the next Maintenance Release after 30 June 1985 and at each subsequent Maintenance Release (Compliance)."},"complexity_factors":["Limited, targeted applicability by serial number (20700001–20700771) creates a narrow affected population","Exception for aeroplanes fitted with raised filler necks per external Service Kit SK182-85 requires cross-referencing another document","Multiple specific inspection actions (visual inspections, removal and inspection of adaptors, adhesive checks, seal actuation checks, and a prescribed leak test) increase procedural detail","Reference to Cessna Service Information Letters (SIL SE 82-34 and SE 84-16) creates dependency on external technical guidance","Compliance timing tied to issuance of the next Maintenance Release and thereafter at each new Maintenance Release imposes recurring scheduling and record-keeping requirements","Potential for follow-on repairs or replacements if defects found increases variable maintenance cost and operational downtime"],"plain_english_summary":"Requires owners/operators of Cessna 207 serials 20700001–20700771 (1969–1984) to inspect fuel filler areas, caps, adaptor seals and perform a fuel-cap leak test at each Maintenance Release after 30 June 1985, unless raised-diameter raised-filler-neck caps have been fitted per Cessna Service Kit SK182-85. The amendment removes a prior, broader requirement for extensive water-ingress inspections for aeroplanes fitted with raised filler necks, altering maintenance obligations and inspection frequency."},"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-207-27-amdt-1-fuel-filler-caps-and-adaptors","history":"/api/acts/ad-cessna-207-27-amdt-1-fuel-filler-caps-and-adaptors/history","analysis":"/api/acts/ad-cessna-207-27-amdt-1-fuel-filler-caps-and-adaptors/analysis","conflicts":"/api/acts/ad-cessna-207-27-amdt-1-fuel-filler-caps-and-adaptors/conflicts","importantCases":"/api/acts/ad-cessna-207-27-amdt-1-fuel-filler-caps-and-adaptors/important-cases","documents":"/api/acts/ad-cessna-207-27-amdt-1-fuel-filler-caps-and-adaptors/documents"}}