What was found
DURING EMERGENCY LIGHT TEST RECEIVED "EPSU EXT LOAD FWD L" MESSAGE. SEE PIC. PERFORMED EPSU BITE TEST ON FWD LEFT REF AMM 33-51-00-710-001. EPSU SHOWS EXTERIOR LIGHTS FAULT. NEEDS TO T/S REF TSM 33-51-00-810-808-A STEP 4.B.(2). REQUEST MEL 3350P FOR ESCAPE SLIDE LIGHTING DOOR 1L. DISPATCH DESK: 25.MEL APPROVED BY TOMC DDP COMPLIED. STICKER INSTALLED. REMOVED AND REPLACED R1 SLIDE AS PER REF AMM 25-62-44. OPS CHECK GOOD. INSP INSTALLATION OF THE R1 DOOR SLIDE ASSY IN REF TO AMM 25-62- 44.