As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AT ABOUT 7000' ON OUR DESCENT INTO STT WE RECEIVED A FUME EVENTWITH THE SMELL OF DIRTY SOCKS, DONNED OXYGEN MASKS AND PROCEEDEDWITH AN UNEVENTFUL LANDING. MAINTENANCE FOUND OIL-COOLER TRANSFER TUBES LEAKING. REMOVED AND REPLACED O-RINGS. OPS AND LEAK CHECK GOOD IAW AMM 49-91-44.