What was found
PHX - EEL - DURING EMERGENCY LIGHT TEST THE LT AFT EMERGENCY POWER SUPPLY UNIT FAILED CIDS BITE CHECK. MAINTENANCE REMOVED AND REPLACED THE LT AFT EMERGENCY POWER SUPPLY UNIT (13WL) IAW AMM 33-51-38-401, FUNCTIONAL CHECK WAS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PHX - EEL - DURING EMERGENCY LIGHT TEST THE LT AFT EMERGENCY POWER SUPPLY UNIT FAILED CIDS BITE CHECK. MAINTENANCE REMOVED AND REPLACED THE LT AFT EMERGENCY POWER SUPPLY UNIT (13WL) IAW AMM 33-51-38-401, FUNCTIONAL CHECK WAS GOOD.