What was found
FAILED EMERGENCY LIGHT TEST, MAINTENANCE MESSAGE ESCAPE SLIDE LEFT EPSU (10WL) FWD L. IAW TSM 25-62-00-810-811A, PERFORMED WIRING CHECKS BET EPSU 10WL AND L1 SLIDE 2871VC IAW ASM 33-51-04 P. 79 FOUND A BAD GROUND ON GROUNDING BLOCK 2505VG, SECURED THE GROUNDING BLOCK. OPS CHECKED GOOD.