As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT 5086, AFTER LANDING FA AND SOME PASSENGERS IN FIRST CLASS REPORTED A BURNING PLASTIC SMELL IN THE FRONT OF THE CABIN THE ODOR DISSIPATED QUICKLY A MECHANIC IN THE BACK SAID HE COULD SMELL THE ODOR ON DESCENT. FOUND OIL IN NR 1 ENGINE NOSE CONE DEPT 279 REPLACED NOSE CONE SEAL. PERFORMED LEVEL B ECS DECONTAMINATION REF AMM 36-10-00. LP 8600514 - AIRCRAFT WAS GROUNDED.