Summary
On July 18, 1990, a Cessna 421C (N6089X) was involved in an incident near Lancaster, CA. All 5 people aboard were uninjured. The aircraft sustained substantial damage.
The National Transportation Safety Board determined the probable cause of this incident to be: THE ACCIDENT WAS ERODED IGNITION SPARK PLUG ELECTRODES AND MAINTENANCE PERSONNEL NEGLECTING TO ADJUST SPARK PLUG ELECTRODES AND MAINTENANCE PERSONNEL NEGLECTING TO ADJUST SPARK PLUG GAP. THE ROUGH TERRAIN IN WHICH THE AIRCRAFT LANDED WAS A FACTOR IN THE ACCIDENT.
This incident is documented in NTSB report LAX90LA259. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N6089X.
Accident Details
Probable Cause and Findings
THE ACCIDENT WAS ERODED IGNITION SPARK PLUG ELECTRODES AND MAINTENANCE PERSONNEL NEGLECTING TO ADJUST SPARK PLUG ELECTRODES AND MAINTENANCE PERSONNEL NEGLECTING TO ADJUST SPARK PLUG GAP. THE ROUGH TERRAIN IN WHICH THE AIRCRAFT LANDED WAS A FACTOR IN THE ACCIDENT.
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# LAX90LA259