What was found
DURING ROUTINE MAINTENANCE THE LEFT EMERGENCY EXIT AFT MARKER WOULD NOT TEST. MAINTENANCE REPLACED #4 EMERGENCY LIGHT INVERTER. OPERATIONAL CHECKS WERE GOOD
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING ROUTINE MAINTENANCE THE LEFT EMERGENCY EXIT AFT MARKER WOULD NOT TEST. MAINTENANCE REPLACED #4 EMERGENCY LIGHT INVERTER. OPERATIONAL CHECKS WERE GOOD