What was found
DURING CRUISE, NR 4 CTC EMITTED BURNING OIL ODOR AND LIGHT SMOKE THROUGHOUT AIRCRAFT. A HOWLING NOISE COULD BE HEARD FROM THE NR 4 CTC. DEFERRED THE NR 4 CTC PER DC8 MEL 21-1-13.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CRUISE, NR 4 CTC EMITTED BURNING OIL ODOR AND LIGHT SMOKE THROUGHOUT AIRCRAFT. A HOWLING NOISE COULD BE HEARD FROM THE NR 4 CTC. DEFERRED THE NR 4 CTC PER DC8 MEL 21-1-13.