What was found
AIR TURNBACK/INFLIGHT SHUTDOWN/DECLARED EMERGENCY, NR 1 ENGINE OIL QUANTITY WENT TO ZERO. R&R NR 1 ENGINE IAW MT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK/INFLIGHT SHUTDOWN/DECLARED EMERGENCY, NR 1 ENGINE OIL QUANTITY WENT TO ZERO. R&R NR 1 ENGINE IAW MT.