What was found
DURING CABIN EMERGENCY LIGHT TEST PTP INDICATED EPSU BATTERY AFT LEFT. REPLACED BATTERY AT 13WL, TESTED OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CABIN EMERGENCY LIGHT TEST PTP INDICATED EPSU BATTERY AFT LEFT. REPLACED BATTERY AT 13WL, TESTED OK.