From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) The right engine experienced a decease in oil pressure and manifold pressure followed by erratic performance. The engine was secured as a precaution. Inspection by the operator's maintenance personnel found six broken attachment studs at the #3 cylinder, the two through bolts are intact. Inspection found no cause for the studs to malfunction; I.e., exhaust valve sticking to valve seat.
As the FAA filed it
(-23) THE RIGHT ENGINE EXPERIENCED A DECEASE IN OIL PRESSURE AND MANIFOLD PRESSURE FOLLOWED BY ERRATIC PERFORMANCE. THE ENGINE WAS SECURED AS A PRECAUTION. INSPECTION BY THE OPERATOR'S MAINTENANCE PERSONNEL FOUND SIX BROKEN ATTACHMENT STUDS AT THE #3 CYLINDER, THE TWO THROUGH BOLTS ARE INTACT. INSPECTION FOUND NO CAUSE FOR THE STUDS TO MALFUNCTION; I.E., EXHAUST VALVE STICKING TO VALVE SEAT.
Other reports on N27956 · 2
Matched to the same aircraft by N-number and date.