What was found
AIRCRAFT WAS GROUNDED: WHILE PERFORMING THE EMERGENCY LIGTHING SYSTEM OPERATION CHECK FOUND SEAT 22H, 25D, 25H & 26H EMERGENCY LIGHT INOP PER WORK CARD 78T21033001. MAINTENANCE REMOVED AND REPLACED WBU 21 IAW AMM 33-51-07.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: WHILE PERFORMING THE EMERGENCY LIGTHING SYSTEM OPERATION CHECK FOUND SEAT 22H, 25D, 25H & 26H EMERGENCY LIGHT INOP PER WORK CARD 78T21033001. MAINTENANCE REMOVED AND REPLACED WBU 21 IAW AMM 33-51-07.