What was found
AIRCRAFT WAS GROUNDED: 12C WHITE LED LIGHT SEAT MOUNTED AISLE INOPERATIVE. REPLACE EMERGENCY POWER SUPPLY UNIT PER AMM 33-51-00.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: 12C WHITE LED LIGHT SEAT MOUNTED AISLE INOPERATIVE. REPLACE EMERGENCY POWER SUPPLY UNIT PER AMM 33-51-00.