What was found
DURING C4 S1 CHECK, INSP NOTED EMERGENCY LIGHTS ON SEATS 6C, 12C, AND 13C INOPERATIVE. MX TROUBLESHOT SYS IAW TSM 33-51-00-810-813, DISCONNECTED EACH EPSU, CLEANED / DRIED THE PLUGS, AND RECONNECTED. OPS TEST NORMAL IAW AMM 33-51-00-710-009.