What was found
AIRCRAFT WAS GROUNDED: EMERGENCY LIGHTS OPS TEST FAULT: EPSU BATTERY AFT L.EFT. MAINTENANCE REPALCED EPSU BATTERY AFT 13WL IAW AMM 33-51-38.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: EMERGENCY LIGHTS OPS TEST FAULT: EPSU BATTERY AFT L.EFT. MAINTENANCE REPALCED EPSU BATTERY AFT 13WL IAW AMM 33-51-38.