As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, EMERGENCY EXIT LIGHT TEST FOUND EPSU EMERGENCY LIGHT (11WL) INTERNAL FAULT IN PASSENGER CABIN . REPLACED EPSU ON EMERGENCY EXIT LIGHTS IAW AMM 33-51-38-400-001-A. PERFORMED BITE TEST IAW AMM 33-51-38-400-001. TESTED OK. OPEN