As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTEANCE,EPSU 10WL DOES NOT PASS EMERGENCY LIGHT TEST; REF AEROMAN NR 2026-346269 W/O:2026 280/1: REMOVED AND REPLACED EPSU 10WL IAW AMM 33-51-38-400-001-A AND AMM 33-51-38-000-001-A. PERFORMED OPERATIONAL TEST, TEST IS OK.