What was found
PIT - THE EMERGENCY LIGHT TEST FAILED IN THE AFT LEFT POSITION. MAINTENANCE REPLACED THE AFT EMERGENCY POWER SUPPLY UNIT (EPSU). OPS CHECKED OK. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PIT - THE EMERGENCY LIGHT TEST FAILED IN THE AFT LEFT POSITION. MAINTENANCE REPLACED THE AFT EMERGENCY POWER SUPPLY UNIT (EPSU). OPS CHECKED OK. (M)