What was found
ON FLIGHT 901, SFO-LHR, CABIN CREW WERE BEING CAUTIOUS DUE TO RECENT EVENT ON DEPARTURE. ODOR WAS FOOD RELATED, & WENT AWAY WITHIN A FEW SECONDS AFTER TAKE OFF. ODOR DIDN`T REOCCUR, FOUND BPCU ON LP 9960550, WHICH WAS REMOVED AND REPLACED DUE TO FAILURE. COMPLETED CONDITIONAL INSPECTION DMC-B787-05-51-99A-282A-A. OK TO CONTINUE. ELECT BUSS POWER CTRL UNIT, LEFT BUSS POWER CONTROL UNIT (BPCU) INOPERATIVE. DB 24 BPCU GATEWAY OPS (RT) UNIT, BUSS POWER OFF 78-2422-9-0002, 3312 ON 78-2422-9-0002, 0270 UNIT, BUS POWER OFF 78-2422-9-0002, 3312 ON 0000, MAT SHOWS MAINT MESSAGE 24-14632 ACTIVE & LATCHED. LT BPCU R & R IAW AMM DMC-B787-A-24-41-05-00A-720A-A. OPS NORMAL AND FAULTS CLEARED.