As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR-CREW REPORTED SMELL OF BURNING PLASTIC NOTED IN COCKPIT & CABIN DURING TAXIOUT. APU GENRTR. DROPPED OFF LINE & SMELL GOT WORSE SIMULTANEOUSLY. MAIN. REMOVED AND REPLACED APU GENERATOR (P/N23080-013A) AND APU GEN CONTROL UNIT (P/N51525-014A) GENERATOR STILL INOPERATIVE. A/C RELEASED IAW MEL #49-00-00 CATEGORY C PLACARD 002649 AND RETURNED TO SERVICE. NO BURNING SMELL NOTED. SDR OPEN.