As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: EMERGENCY EXIT SIGNS FORWARD WALL AND TOP OF R2 DOOR FAILS 15 MINUTE RESTORATION CHECK. REPLACED EMERGENCY POWER SUPPLY M33097 FOR EMERGENCY EXIT SIGNS FORWARD WALL AND TOP OF R2 DOOR. PER AMM 33-51-06 SSM 33-51-13.