As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FAT - LEFT BETA LIGHT FLASHING AT ALL POWER LEVER SETTINGS BELOW FLIGHT IDLE ON TAXI. AIRCRAFT RETURNED TO GATE. MAINTENANCE CLEANED AND LUBRICATED LOW PITCH STOP MICROSWITCH. PERFORMED OPERATIONAL CHECK OF SYSTEM. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (W)