What was found
AFTER DEPARTING CVG CREW SELECTED ENGINE AIRS ON. STRONG OIL SMELL WAS NOTED IN THE CABIN AND THE FLIGHT DECK. CREW ISOLATED TO THE NR 4 ENGINE. FLIGHT CONTINUED ON WITHOUT FURTHER INCIDENT. APU BLEED VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER DEPARTING CVG CREW SELECTED ENGINE AIRS ON. STRONG OIL SMELL WAS NOTED IN THE CABIN AND THE FLIGHT DECK. CREW ISOLATED TO THE NR 4 ENGINE. FLIGHT CONTINUED ON WITHOUT FURTHER INCIDENT. APU BLEED VALVE.