What was found
ATTEMPTED TWO APU STARTS AFTER LANDING IN SEA. BOTH RESULTED IN AMBER FAULT LIGHTS. GROUNDED - YES. FAULT CODE 49-41012 IS DRIVEN BY CORRELATED FAULT 49-41254 (START CONVERTER UNIT SHOWS START SYSTEM INOP). BOTH FAULTS SHOW NOT ACTIVE, PER B737-9 IFIM TASK 49-40-00-810-818, FAULTS WERE INTERMITTENT. RAN APU MULTIPLE TIMES, APU STARTS NORMALLY AND SUPPLIES POWER AND AIR NORMALLY.