As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: WHILE PERFORMING WORK CARD 78T21033001 FOUND MAINTENANCE MESSAGE 33-11211 CLASS II INTERNAL FAULT AND MAINTENANCE MSG 33-11411 CLASS II WIRELESS CONTROL UNIT BATTERY POWER HAS FAILED. REMOVED AND REPLACED WIRELESS BATTERY UNIT'S AT 11.1. (AALA202112014056) AND 11.3 PER AMM 33-51-07 OPERATIONS CHECKS NORMAL.