Robinson R22 – Rotor RPM Sensor Magnet Loose

R22 - Rotor RPM sender magnet loose

Student found one of the rotor RPM sensor magnets on the MR input shaft yoke was loose. This very thing has lead to an accident and creation of a service bulletin in the past. https://www.helicoptertrainingvideos.com/service-bulletin-born/

Additional Photos

HTV article about how a loose rotor RPM sender magnet lead to an accident and service bulletin https://www.helicoptertrainingvideos.com/service-bulletin-born/

Maintenance Notes

Outcome: Grounded

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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