As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 ENGINE WENT TO FEATHER DURING INFLIGHT NTS CHECK. NTS GAP ADJUSTED IAW SMP581 CH 61-60. NR 3 ENGINE CONTROLS RIGGING AND OPS CHECK CARRIED OUT IAW SMP581 76-10. PROP BETA SCHEDULE AND NTS CHECKS CARRIED OUT. ENGINE RUN CARRIED OUT SATISFACTORY.