As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 ENG OVERSPEED FAIL CAME ON DURING HOVER TAXI. A TEST FLIGHT EVAL FOUND THAT AFTER 5 ATTEMPTS ON RESETTING #1 ENGINE OVERSPEED LIGHT CB, LIGHT WOULD NOT EXTINGUISH. REMOVED AND REPLACED OVERSPEED SENSOR IAW EMM 77-14-00-900-802-A01. MOC COMPLETED OK.