What was found
NR 4 CTC MADE A LOUD HOWLING NOISE FOLLOWED BY THE SMELL OF SMOKE AND OIL IN THE COCKPIT. SHUTDOWN THE NR 4 CTC FOR THE REMAINDER OF THE FLIGHT. REPLACED THE NR 4 CTC IAW DC8 MM AND OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 4 CTC MADE A LOUD HOWLING NOISE FOLLOWED BY THE SMELL OF SMOKE AND OIL IN THE COCKPIT. SHUTDOWN THE NR 4 CTC FOR THE REMAINDER OF THE FLIGHT. REPLACED THE NR 4 CTC IAW DC8 MM AND OPS CHECK GOOD.