What was found
PHX - DURING ROUTINE MAINTENANCE CHECK, LT MID-CABIN EPSU FAILED BITE TEST. REMOVED AND REPLACED EPSU BATTERY, OPS CHECK GOOD. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PHX - DURING ROUTINE MAINTENANCE CHECK, LT MID-CABIN EPSU FAILED BITE TEST. REMOVED AND REPLACED EPSU BATTERY, OPS CHECK GOOD. (X)