As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)WHILE TAXIING IN PREPARATION FOR TAKEOFF, #1 ENGINE OIL PRESSURE DECAYED AND THE PROPELLER WENT INTO AN UNCOMMANDED FEATHER POSITION ENGINE SECURED AND RETURNED TO GATE. LARGE AMOUNT OF METAL FOUND ON THE REDUCTION GEAR BOX CHIP DETECTOR. ENGINE INSTALLED 3 DAYS PREVIOUSLY.