What was found
ITEM 1 - APU COLD SOAK START FL 360 -51 TEMP, 21:52Z; 3 ATTEMPTS UNSUCCESSFUL. ITEM 2 - APU FAULT EICAS. NOTED BY MX, DMI CONTINUES FOR APU COLD SOAK, MCC ADVISED. ITEM - 2: PERFORMED APU BITE PROCEDURE IAW FIM 49-11 FT 987. ECU LRU FAULTED, CLEARED FAULT, APU OPERATING NORMAL. LP 1051095 - ITEM 1: APU RELIABILITY COLD SOAK ACCOMPLISHED ON FLT LEG SCK - BWI SAT -54, FL 390; START SUCCESSFUL ON 1ST ATTEMPT.