As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT LEFT ENGINE WAS SHOWING LOW OIL PRESSURE 10 MINUTES OUT OF AIRPORT, ALL OTHER ENGINE GAUGES READ NORMAL. PILOT STARTED LEFT ENGINE FOR DEPARTURE BACK, BUT LEFT ENGINE OIL PRESSURE GAUGE DID NOT RESPOND. TROUBLESHOT ENGINE AND FOUND METAL SHAVING IN OIL FILTER, NO FURTHER ACTION HAS BEEN TAKEN TO DETERMINE CAUSE OF ENGINE WEAR. AIRCRAFT HAS BEEN GROUNDED FOR ENGINE REPLACEMENT.