As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE LOST OIL PRESSURE, PILOT FEATHERED ENGINE AND SHUT IT DOWN. FOUND UNFEATHERING LINE BROKEN AT FLAIR AT PROP GOV. REMOVED AND REPLACE LINE. OPS CHECKS GOOD. SERVICES WITH OIL GROUND RAN FOR 1 HR. REMOVED FILTER NOTHING FOUND IN FILTER. OK FOR SERVICE.