Summary
On September 02, 1992, a Piper PA-23-160 (N4305Y) was involved in an accident near Concord, CA. The accident resulted in 2 fatal injuries. The aircraft was destroyed.
The National Transportation Safety Board determined the probable cause of this accident to be: The following Probable Cause was modified on April18, 2007, as a result of new information provided to the NTSB.
THE IMPROPER INSTALLATION OF THE 1.75 INCH OD PLUG IN THE CRANKSHAFT BY UNKNOWN MAINTENANCE PERSONNEL WHICH RESULTED IN AN INADVERTENT FEATHERING OF THE LEFT ENGINE PROPELLER.
This accident is documented in NTSB report LAX92FA374. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N4305Y.
Accident Details
Probable Cause and Findings
The following Probable Cause was modified on April18, 2007, as a result of new information provided to the NTSB. THE IMPROPER INSTALLATION OF THE 1.75 INCH OD PLUG IN THE CRANKSHAFT BY UNKNOWN MAINTENANCE PERSONNEL WHICH RESULTED IN AN INADVERTENT FEATHERING OF THE LEFT ENGINE PROPELLER.
Aircraft Information
Registered Owner (Historical)
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# LAX92FA374