What was found
FLT 701 - SHUT DOWN NR 4 ENGINE DUE TO BACKFIRING AT 2358Z. REPLACED NR 1 CYLINDER. (Z)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT 701 - SHUT DOWN NR 4 ENGINE DUE TO BACKFIRING AT 2358Z. REPLACED NR 1 CYLINDER. (Z)