ASN Wikibase Occurrence # 363760
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Date: | Saturday 18 April 1992 |
Time: | 15:00 LT |
Type: | Rose Wesley ROTORWAY WR EXEC |
Owner/operator: | Private |
Registration: | N6617L |
MSN: | 10001 |
Total airframe hrs: | 207 hours |
Engine model: | ROTORWAY RW152/1947 |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Hudsonville, MI -
United States of America
|
Phase: | Initial climb |
Nature: | Private |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE EXPERIMENTAL HELICOPTER WAS CLIMBING OUT FROM TAKEOFF WHEN THE ENGINE BEGAN TO MALFUNCTION. THE HELICOPTER WAS 40 FEET ABOVE THE GROUND WHEN THE PILOT HAD TO INITIATE A FORCED LANDING. AN AUTO ROTATION CONFIGURATION WAS ATTEMPTED BUT NOT FULLY ESTABLISHED DUE TO THE LOW INITIATING ALTITUDE. THE HELICOPTER LANDED ONTO A SOFT FIELD AND ROLLED OVER AFTER ITS SKIDS DUG INTO THE SURFACE. THE INVESTIGATION REVEALED THE ENGINE MALFUNCTION WAS CAUSED BY A BROKEN INTAKE VALVE SPRING.
Probable Cause: THE FAILURE OF AN INTAKE VALVE SPRING. FACTORS RELATED TO THE ACCIDENT WERE THE LOW ALTITUDE AT WHICH THE AUTOROTATION WAS INITIATED AND THE SOFT TERRAIN ON WHICH THE HELICOPTER WAS LANDED.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CHI92DEM01 |
Status: | Investigation completed |
Duration: | 1 year and 2 months |
Download report: | Final report |
|
Sources:
NTSB CHI92DEM01
Location
Revision history:
Date/time | Contributor | Updates |
18-Mar-2024 20:47 |
ASN Update Bot |
Added |
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