As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOTH OVER-WING EMERGENCY EXIT LIGHTS ONLY ILLUMINATE FOR A FEW SECONDS BEFORE GOING OUT. MAINTENANCE REPLACED THE OVERWING EMERGENCY EVACUATION LIGHT BATTERY PER B717 AMM 33-51-06-401. BOTH OVERWING EMERGENCY LIGHTS NOW WORK CORRECTLY. (LP #9963359)