{"id":"F2006B05133","name":"AD/CESSNA 185/41 - Fuel System Water Drainage Placard","slug":"ad-cessna-185-41-fuel-system-water-drainage-placard","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45182,"registerId":"commonwealth-F2006B05133-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 185/41 - Fuel System Water Drainage Placard","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 185/41 Fuel System Water Drainage Placard 12/85 DM\n\nApplicability: All models with S/.Nos. as listed in Cessna SIL SE84-4.\n\nRequirement: Install the following placard in clear view of the pilot on the instrument panel or surrounding structure:\n\n“Refer Flight Manual for special fuel/water drain procedures”.\n\nCompliance: 1. Before further flight after 31 December 1985.\n\n2. Certification on the Maintenance Release may be made by a pilot endorsed on the aircraft type. Where a pilot has made the certification, a further certification at the next inspection for maintenance shall be made by any Licensed Aircraft Maintenance Engineer.\n\nBackground: This Directive has been raised to bring to the attention of pilots an amendment to the approved Flight Manual requiring specific procedures to be followed after an aircraft has been exposed to rain, sleet, snow or after fueling from drumstock or other unfiltered fuel source.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1767},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive remains precisely focused on its original purpose of mandating a cockpit placard to alert pilots to fuel drainage procedures following exposure to precipitation or unfiltered fuel sources. There is no indication of scope expansion beyond this specific safety requirement."},"complexity_factors":["Single, unambiguous requirement (install one specific placard with exact wording)","Clear applicability limited to specific aircraft serial numbers listed in a referenced document (Cessna SIL SE84-4)","Definite compliance deadline (before further flight after 31 December 1985)","Minimal cross-referencing (only refers to Cessna Service Information Letter for serial numbers and the aircraft Flight Manual)","No conditional exceptions, nested logic, or alternative compliance methods"],"plain_english_summary":"Owners of Cessna 185s specified in Cessna Service Information Letter SE84-4 must install a cockpit placard reading “Refer Flight Manual for special fuel/water drain procedures.” It’s intended to remind pilots to follow fuel/water drainage steps because water contamination from rain, snow, or unfiltered refueling can cause engine failure.\n\nThe placard must be fitted before any flight after 31 December 1985; a qualified pilot may sign off initial installation, and a Licensed Aircraft Maintenance Engineer must verify it at the next inspection."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-185-41-fuel-system-water-drainage-placard","history":"/api/acts/ad-cessna-185-41-fuel-system-water-drainage-placard/history","analysis":"/api/acts/ad-cessna-185-41-fuel-system-water-drainage-placard/analysis","conflicts":"/api/acts/ad-cessna-185-41-fuel-system-water-drainage-placard/conflicts","importantCases":"/api/acts/ad-cessna-185-41-fuel-system-water-drainage-placard/important-cases","documents":"/api/acts/ad-cessna-185-41-fuel-system-water-drainage-placard/documents"}}