What was found
POWER SUPPLY RETURNED FOR REPAIR AFTER REPORTED THAT UNIT WAS SMOKING DURING FLIGHT SEGMENT. DURING TEAR-DOWN, FOUND ''SCORCHED & MELTED'' CAPACITORS AND COMPONENTS WITHIN POWER SUPPLY. LABORATORY INVESTIGATION OF ROOT CAUSE STILL ONGOING. A NIC MFG CAPACITOR IS SUSPECTED. FINAL FIX STILL BEING WORKED. AS A PRECAUTION, NIC CAPACITORS HAVE BEEN PURGED FROM REPAIR STATION STOCK AND COORDINATED PRODUCTION. AIRLINE AND BOEING COORDINATION ONGOING. (X)