What was found
EXTERIOR EMERGENCY LIGHTS WERE INOPERATIVE. FOUND WIRES L1594J18 AND L1598B18 SHORTING TO GROUND WITH EACH OTHER AT PRESSURE SEAL. REPAIRED THE WIRING IAW WDM 33-51-13 691460. FOUND WIRE AT L2-664 CHAFED AT THE LIGHT ASSY L1594H18. REPAIRED THE TERMINAL END AND NO SHORTS FOUND. 28V GOOD AT TERMINAL 2 OF S3-329. INSTALLED A NEW POWER SUPPLY ASSY B5-125 AND NO POWER AT S3-329 TERMINAL 2 AGAIN. FOUND SHORT AT PRESSURE SEAL OF LIGHT ASSY B5-125. REMOVED BAD SECTION OF WIRE L1594H18 AND INSTALLED NEW LIGHT ASSY AND NEW POWER SUPPLY B5-125. OVER WING EMERGENCY LIGHTS NOW OP NORMAL.