What was found
ROW 33 & BACK BOTH SIDES EMER EXIT LIGHTS ARE ON. REF DMC-B787-A-33-51-07-01A-720A-A. TRIED NEW WCU AT DR 4R & 3L, NO HELP. SOFTWARE, NO HELP. TRIED NEW WCU AT 38D, NO HELP. REF WD DMC-B787-A-33-51-11-10A-051A-D. FOUND CONNECTOR ON 38D SEAT LOOSE. CONNECTED OK.