{"id":"F2006B06428","name":"AD/R22/22 - Gascolator Fuel Filter - Inspection","slug":"ad-r22-22-gascolator-fuel-filter-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47812,"registerId":"commonwealth-F2006B06428-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/R22/22 - Gascolator Fuel Filter - Inspection","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)  \nRobinson R22 Series Helicopters\n\nAD/R22/22 Gascolator Fuel Filter \\- Inspection 10/84\n\nApplicability: All R22 helicopters with less than 100 flying hours since new and R22A model.\n\nRequirement: Remove filter screen from the gascolator PN A666-1 and inspect for excessive contamination. Clean the filter screen and bowl and reinstall in accordance with the maintenance manual.\n\nNote: If excessive or unusual contamination is found advise the nearest Regional Office of the Department of Aviation.\n\nCompliance: Within 10 hours time in service after 16 August 1984.\n\nBackground: Several low hours R22 series helicopters have had excessive contamination of the fuel gascolator filter screen. It is considered that the particles probably entered the system during manufacture or assembly.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1127},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope as a one-time mandatory inspection to address manufacturing contamination in specific new Robinson R22 helicopters. It has not expanded beyond this specific safety issue."},"complexity_factors":["Single discrete maintenance task with four clear steps (remove, inspect, clean, reinstall)","Limited applicability criteria (specific helicopter model and flight hour threshold under 100 hours)","No cross-references to other legislation or conditional exceptions","Fixed compliance deadline with no alternative methods specified"],"plain_english_summary":"This is a safety directive (called an **Airworthiness Directive**) that applies to specific Robinson R22 helicopters—specifically those with less than 100 flight hours and R22A models.\n\n**What it requires:**\nMechanics must remove the fuel filter screen from the **gascolator** (a device that filters fuel before it reaches the engine) part number A666-1, check it for excessive dirt or debris, clean both the screen and the bowl, and reinstall everything according to the maintenance manual.\n\n**Why it matters:**\nSeveral new helicopters were found to have contaminated fuel filters. The debris likely entered the fuel system during manufacturing or assembly, which could potentially cause engine failure.\n\n**Compliance deadline:**\nThe inspection must be done within **10 flight hours** after 16 August 1984.\n\n**Important note:**\nIf the mechanic finds unusual or excessive contamination, they must report it to the nearest Regional Office of the Department of Aviation (now CASA)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-22-gascolator-fuel-filter-inspection","history":"/api/acts/ad-r22-22-gascolator-fuel-filter-inspection/history","analysis":"/api/acts/ad-r22-22-gascolator-fuel-filter-inspection/analysis","conflicts":"/api/acts/ad-r22-22-gascolator-fuel-filter-inspection/conflicts","importantCases":"/api/acts/ad-r22-22-gascolator-fuel-filter-inspection/important-cases","documents":"/api/acts/ad-r22-22-gascolator-fuel-filter-inspection/documents"}}