As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#2220, LHR-JFK. 'INTERMITTENT RUBBER SMELL COMING FROM COCKPIT AND FORWARD GALLEY; INSPECTION OF F/D + FWD D1L AREA C/OUT AND INSPECTIONS OF AVIONICS BAY AND AVIONICS VCENT AREAS DUE TO SUSPICION OF BURNING RUBBER ODOR. NO EVIDENCE OF FAILED EQUIPMENT OF BURNING IN INSPECTION FOUND IAW AMM TSM 24-00-00-810-823-A. A/C SATIS FOR CONT'D SERVICE.'