As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT APROX 800 FEET BURNING PLASTIC SMELL WAS EXPERIENCED IN FLIGHT DECK ONLY. PRIOR TO TAXI PACK 2 OVERHEAT MESSAGE DISPLAYED WITH NORMAL CREW PROCEDURES. RAN PACKS WITH ENGINE POWER AT 87% AND APU NO DEFECTS NOTED AT THIS TIME A/C OK FOR SERVICE AT THIS TIME