Robinson R22 – Stuck Valve
The pilot reported unusual vibrations and slight loss of power. During first pickup to a hover the aircraft felt like it wanted to vibrate itself apart. RPM decayed to bottom of green and manifold pressure rose to ~24 (as governor attempted to maintain RPM by opening throttle – likely to full throttle).
Additional Photos
Maintenance Notes
Outcome: Grounded
Suspected stuck valve based on symptoms. Post flight inspection quickly discovered a bent valve push rod.
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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