What was found
BURNING ODOR IN FLIGHT DECK DURING CLIMB, LASTED 2 MINS. F/A'S DID NOT SMELL ANYTHING. PIREP OVENS ONLY USED IN CRUISE AFTER ODOR EVENT. NO VISIBLE SMOKE PRESENT. ODOR ONLY REPORTED FROM COCKPIT CREW. HYDRAULIC SYS WAS SERVICED CORRECTLY. RAN APU & DID NOT NOTICE ODOR. RAN BOTH PACKS & SINGLE PACK, NO ODOR NOTED. BOTH PACK BAYS INSPECTED, NO DEFECTS NOTED. INSPECTED BOTH RECIRCULATION FANS, NO ODOR NOTED. RAN APU & LT & RT PACKS INDIVIDUALLY. ON INITIAL STARTUP ECB WOULD NOT POWER ON, FAULT MSG 49-89002. TRIED APU MAINT POWER ON, NO HELP. CYCLED BATTERY SWITCH, OPS CHECK OK. APU STARTED, NO ODORS FROM EITHER PACKS ON HI MODE. ECB WOULD NOT POWER OFF 5 MINS AFTER APU SPOOLED BELOW 10%. REF TSM 21-00 TASK 830. POSSIBLE APU ECB OR RELAY ISSUE. GVI OF APU, NO DEFECTS NOTED. PERFORMED IDLE ENGINE RUN FOR ENGINE 1 & 2 IAW AMM 71-00-00-910-803-G00. USED BLEED CONTROL PANEL TO ATTEMPT RECREATION OF ODOR ISSUE. COULD NOT DUPLICATE FROM EITHER ENGS OR APU. APU BLEED HAS BEEN PLACED ON MEL IAW LP 3152529. ALL REQUIRED FIM & T/S TASKS WERE COMPLETED FOR BLEED ISSUE. OK TO CLEAR LOGPAGE.