What was found
LOST ALL GALLEY & LAVATORY POWER, AIRBORNE. NOTICED BURNING SMELL IN AFT GALLEY. FLIGHT DECK INDICATIONS NORMAL. ACCOMPLISHED FIM TASK 25-31-00-810-801 BPCU BITE, NO FAULTS, OPERATIONS TEST MM TASK 24-21-00-700-803, NO FAULTS. IAW MFG FLEET TEAM DIGEST ARTICLE 737NG-FT-24-12003, REPLACED BPCU PRECAUTIONARY, MM TASK S 24-41-21-000-801, 24-41-21-400-801. TESTED IN AIR MODE OK, 32 -09-00-860-80.