Summary
On August 26, 1992, a Helio H-391B (N4431U) was involved in an incident near Edmonds, WA. All 1 person aboard were uninjured. The aircraft was destroyed.
The National Transportation Safety Board determined the probable cause of this incident to be: THE PARTIAL LOSS OF ENGINE POWER WHEN AN EXHAUST VALVE SEIZED IN THE OPEN POSITION AND THE WATER WHERE THE PILOT WAS FORCED TO LAND, WHICH RESULTED IN AN ACFT NOSE OVER ON TOUCHDOWN.
This incident is documented in NTSB report SEA92LA191. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N4431U.
Accident Details
Probable Cause and Findings
THE PARTIAL LOSS OF ENGINE POWER WHEN AN EXHAUST VALVE SEIZED IN THE OPEN POSITION AND THE WATER WHERE THE PILOT WAS FORCED TO LAND, WHICH RESULTED IN AN ACFT NOSE OVER ON TOUCHDOWN.
Aircraft Information
Registered Owner (Current)
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# SEA92LA191