As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX - FLT 2274 - DURING ROUTINE MAINTENANCE CHECK, EMERGENCY EXIT LIGHT TEST FAILED. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY FORWARD LEFT OVERWING. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT FWD LEFT OVERWING. SYSTEM CHARGED, OPERATIONS CHECK GOOD. (M)