ASN Wikibase Occurrence # 21079
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| Date: | Friday 13 June 2008 |
| Time: | 13:20 |
| Type: |  Schweizer 269C (300C) |
| Owner/operator: | Whirlybird Helicopters |
| Registration: | N54LC |
| MSN: | S1581 |
| Year of manufacture: | 1991 |
| Engine model: | Lycoming HIO-360 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | West Desert Air Park, Cedar Valley, UT -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Demo/Airshow/Display |
| Departure airport: | Cedar Valley, UT (UT99) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that the purpose of the flight was to demonstrate the helicopter's performance at an air show. He traveled from overseas by scheduled airline, arriving 2 days before the air show. The day before the air show he flew the helicopter for 50 minutes of demonstration practice at a similar density altitude to that anticipated for the following day's performance. The accident flight began about 1315, and the first two maneuvers were completed without incident. The third maneuver was "a standard 180-degree 'wing-over' commenced from a standard 300 feet." According to the pilot, the helicopter "failed to fully recover from the descent phase of the maneuver and struck the surface at approximately 40-50 knots." The helicopter rolled onto its left side. The pilot reported that the density altitude at the time of the accident was 8,500 feet. He stated that the accident could have been prevented "possibly by greater awareness and practice at the local density altitude conditions."
Probable Cause: The pilot's failure to maintain terrain clearance while maneuvering. A contributing factor was the high density altitude.
Accident investigation:
 |
|
Sources:
NTSB
History of this aircraft
Other occurrences involving this aircraft
| 6 June 2006 | N54LC | Lake County Board Of Commissioners | 0 | Schererville, IN | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Jun-2008 09:57 | drjmarkov | Added |
| 12-Jul-2008 23:20 | Fusko | Updated |
| 12-Aug-2009 08:02 | harro | Updated |
| 21-Dec-2016 19:14 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 19:16 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 19:20 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 03-Dec-2017 11:23 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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