Robinson R44 – Fuel Sample Valve Blocked
Fuel sump was giving very low flow rate, blockage was suspected.
Maintenance Notes
Outcome: Grounded
Maintenance removed the valve and found it was blocked with wood splinters. Suspected contamination came from a wooden fuel quantity dip stick. Make sure to 'preflight' your dipstick before use and replace if starting to fall apart. Consider finding a plastic alternative.
These notes reflect reported observations at the time of submission and are provided for educational purposes only. They are not a determination of airworthiness and do not constitute maintenance or regulatory advice.
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