As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: OIL FUMES SMELL IN FLIGHT DECK AND CABIN DURING CLIMB, LANDING AND TAXI IN.. MAINTENANCE FOUND APU COOLING FAN LEAKING OIL INTERNALLY AND REPLACED IT PER AMM 49-52-51. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED. NO ODOR NOTED.