As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 668 STRONG OLD SWEAT SOCK SMELL DURING T.O. INITIAL CLIMB. DISSIPATED SLOWLY AFTER CLB PWR SELECTED. COCKPIT ONLY. NO SMELL IN CABIN. CRUISE WAS OK BUT STRONG SMELL APPEARED PERIODICALLY DURING DESCENT AND APPROACH. CORRECTIVE ACTION: WKG NO GO ODI ATA 2172. T/S PER FIM 21-00-01/301. FOUND OIL IN THE 1 ENG SPINNER AREA. C/W NO GO ODI RAN RT ENG NO SMELL IN L OR R PACK. PNUE CK CKS NORMAL. (8335132)