{"id":"F2006B05619","name":"AD/PA-28/62 - Fuel Selector Valve - Inspection","slug":"ad-pa-28-62-fuel-selector-valve-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135261,"registerId":"commonwealth-F2006B05619-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-28/62 - Fuel Selector Valve - 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)  \nPiper PA-28 Series Aeroplanes\n\nAD/PA-28/62 Fuel Selector Valve \\- Inspection 9/77\n\nApplicability: Model PA-28-235 with S/Nos. 28-10001 to 28-6410093 fitted with an Airborne Model 1-H10, 1-H16-1, 1-H26-2, 1-H26-3 or -1-H26-4 fuel selector valve.\n\nRequirement: 1. Ensure that there is at least one gallon of fuel in each tank and carry out the normal pre-flight water drain checks.\n\n    2. With the fuel selector in the “OFF” detent, operate the fuel selector valve drain lever for one minute and discard the collected contents.\n\nNote: Several attempts may be required to drain all fuel from the collector bowl.\n\n    3. Close the drain valve and wait for three minutes. Drain fuel selector for one minute into a graduated container and if contents exceed one-half fluid ounce (one tablespoon) repeat the drain.\n\n    4. If the repeat drain exceeds one-half fluid ounce, remove, clean and reinstall the fuel selector valve and repeat step No. 3.\n\n    5. If, after carrying out steps 3 and 4, the drain exceeds one- half fluid ounce, replace the fuel selector valve with Piper Fuel Valve Kit No. 757148V or 760895V as applicable.\n\nNote: Steps 1 to 3 above, may be performed and certified by the pilot.\n\nCompliance: Within 25 hours time in service after 31 July 1977 and thereafter at intervals not exceeding 100 hours time in service until fitted with Piper Fuel Valve Kit No.\n\n757148V or 760895V as applicable.","sortOrder":0}],"analysis":{"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument applies narrowly to PA‑28‑235 aircraft within the stated serial range fitted with listed Airborne fuel selector valves and requires inspection, cleaning or replacement until fitted with specified Piper kits. The text does not indicate any expansion or narrowing of that scope beyond these explicit limits."},"complexity_factors":["Narrow applicability: specific model (PA-28-235) and serial number range, limiting who must comply","Limited to particular valve models (Airborne 1-H10, 1-H16-1, 1-H26-2, 1-H26-3, 1-H26-4), creating parts-based scope","Stepwise procedural requirements with numeric thresholds (one gallon minimum, drain for one minute, threshold 1/2 fluid ounce/one tablespoon)","Mixed measurement units (gallons, fluid ounces, tablespoon, minutes) increasing risk of misinterpretation","Repeat/iterative actions allowed (\"several attempts may be required\"), which creates procedural ambiguity","Pilot vs maintenance role split: steps 1–3 may be performed and certified by the pilot, while removal/cleaning/replacement may require maintenance resources","Prescribed replacement kits by part number (Piper 757148V or 760895V) impose procurement and installation obligations","Compliance timing: initial compliance within 25 hours TIS after 31 July 1977, then recurring at ≤100-hour intervals until kit fitted","Operational burdens: need for graduated container, disposal of drained fuel, and possible repeated inspections/maintenance"],"plain_english_summary":"Mandates inspection and drainage of the fuel selector valve on specified Piper PA‑28‑235 aeroplanes. The procedure requires measured draining while the selector is OFF, repeat drains, cleaning, and replacement with specified Piper kits if drained contents exceed 1/2 fluid ounce; pilots may perform and certify initial steps. Affected parties are aircraft owners, operators and pilots; compliance is due within 25 hours' service and then every 100 hours until the approved kit is fitted. The measure addresses fuel accumulation in the selector by procedural inspection and part replacement."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted airworthiness directive addressing a specific known defect in specific aircraft. It has not expanded beyond its original purpose of addressing fuel selector valve leaks in the identified Piper aircraft models."},"complexity_factors":["Specific applicability criteria requiring cross-referencing of aircraft model, serial number range, and specific part numbers","Multi-step procedural requirements with conditional logic (if/then branches at steps 4 and 5)","Precise measurements specified (one-half fluid ounce, one tablespoon, one gallon, one minute, three minutes)","Dual compliance pathway: repetitive inspection regime OR one-time replacement","Split certification requirements — some steps pilot-certifiable, others requiring licensed maintenance","Reference to specific replacement part numbers (757148V and 760895V) that must be matched to the aircraft"],"plain_english_summary":"This CASA Airworthiness Directive orders owners/operators of specified Piper PA-28-235s with certain Airborne fuel selector valves to perform periodic drain-and-leak checks to detect internal leaks. Pilots may do the basic drain/check; if leakage exceeds ½ fluid ounce the valve must be cleaned and retested, and if it still leaks a licensed maintenance engineer must replace the valve with an approved Piper kit. First check was due within 25 flight hours of 31 July 1977, then every 100 flight hours until replacement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-62-fuel-selector-valve-inspection","history":"/api/acts/ad-pa-28-62-fuel-selector-valve-inspection/history","analysis":"/api/acts/ad-pa-28-62-fuel-selector-valve-inspection/analysis","conflicts":"/api/acts/ad-pa-28-62-fuel-selector-valve-inspection/conflicts","importantCases":"/api/acts/ad-pa-28-62-fuel-selector-valve-inspection/important-cases","documents":"/api/acts/ad-pa-28-62-fuel-selector-valve-inspection/documents"}}