What was found
FLT # 938 SJD-JFK. MAGIC MARKER SMELL IN FLIGHT DECK AND FWD GALLEY , APU BLLED BOTH PACKS ON. ( APU SYSTEM ), AIRCRAFT N2039J OPERATING FLIGHT 938 SJD - JFK REPORTED A CABIN ODOR EVENT. THE FLIGHT CREW REPORTED PACK 1 FUME EVENT ON TAKEOFF, LEVEL 2 DIRTY SOCK SMELL. THE ODOR DISSIPATED AFTER SELECTING PACK 1 OFF. THE AIRCRAFT HAS BEEN TAKEN OUT OF SERVICE AT JFK FOR TROUBLESHOOTING. THIS AIRCRAFT HAD ONE PREVIOUS REPORT RELATED TO THIS EVENT WITHIN THE LAST 30 DAYS.