What was found
UPON BATTERY MASTER SWITCH ON BURNING SMELL IN FLIGHT DECK / INTERROGATED MDC FOUND NO B1 CODES. TROUBLESHOT SMELL IN THE COCKPIT BY RESETTING THE AIRCRAFT 2 TIMES. TURNED BOTH THE PACKS ON. SET WINDOW HEAT ON HIGH. TURNED RECIRCULATING FAN ON. SET DISPLAY FAN TO GND ALTN. TURNED ALL COCKPIT LIGHTING ON. IAW CRJ 900 FIM 21-21-00-810-806. COULD NOT REPLICATE SMELL AT THIS TIME.