Summary
On June 17, 1989, a Cessna 421 (N421S) was involved in an accident near Picacho, AZ. The accident resulted in 4 minor injuries. The aircraft was destroyed.
The National Transportation Safety Board determined the probable cause of this accident to be: FAILURE OF THE NUMBER THREE EXHAUST VALVE ON THE LEFT ENGINE. A MAJOR FACTOR WAS THE HIGH DENSITY ALTITUDE WHERE THE AIRPLANE WOULD NOT OPERATE ON SINGLE ENGINE.
This accident is documented in NTSB report LAX89LA217. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N421S.
Accident Details
Probable Cause and Findings
FAILURE OF THE NUMBER THREE EXHAUST VALVE ON THE LEFT ENGINE. A MAJOR FACTOR WAS THE HIGH DENSITY ALTITUDE WHERE THE AIRPLANE WOULD NOT OPERATE ON SINGLE ENGINE.
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# LAX89LA217