As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT THRUST REVERSER UNSAFE CAUTION MESSAGE AND POSSIBLE DEPLOYMENT AT ROTATION. AIRCRAFT SHUDDERED. MESSAGE CLEARED AT 1000 FEET, NORMAL FLIGHT THEREAFTER. REMOVED AND REPLACED NR 1 ENGINE THRUST REVERSER POWER DRIVE PDU 9PDU FULL OF WATER, DRAINED UPON ARRIVAL. (M)