As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT LANDED WITH LEFT ENGINE FEATHER AND SECURED. PILOT REPORTED LOW MANIFOLD PRESSURE. INSPECTION REVEALED LEFT TURBOCHARGER BEARINGS DRAGGING. REPLACED TURBOCHARGER WITH OVERHAUL UNIT. ENGINE OPERATIONALLY CHECKED OK. COMPONENT AGE SUSPECTED AS CAUSE BUT LOGBOOKS WERE UNAVAILABLE . TT 2278