What was found
PHX - FLT NR 604 - DURING ROUTINE MAINTENANCE CHECK, FOUND EMERGENCY EXIT SIGNS AT OVERWING WILL NOT LIGHT. REMOVED AND REPLACED BATTERY PACK. OPS GOOD ON GROUND. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PHX - FLT NR 604 - DURING ROUTINE MAINTENANCE CHECK, FOUND EMERGENCY EXIT SIGNS AT OVERWING WILL NOT LIGHT. REMOVED AND REPLACED BATTERY PACK. OPS GOOD ON GROUND. (M)