What was found
EPSU UNIT FWD L FAULT AFTER BITE TEST. T/S IAW TSM 33-51-00-810-801-A, PERFORMED BITE TEST OF EMERGENCY LIGHT SYS & CONFIRMED EPSU UNIT FWD LT, FAULT WAS PRESENT. PERFORMED OPS TEST OF THE EEL & ALL LIGHTS WERE OPERATIONAL. REPLACED LT FWD EPSU 10WL. PERFORMED BITE TEST AGAIN OF EMERGENCY LIGHT SYS & NOW PASSES, NO FAULTS ARE PRESENT. IAW AMM 33-51-38-000-001-A, 33-51-00-710-008-A, 33-51-00-710-009-A, 33-51-00-710-805-A, 33-51-38-400-001-A.