ASN Wikibase Occurrence # 353182
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| Date: | Sunday 13 June 1999 |
| Time: | 09:30 LT |
| Type: |  RotorWay Exec 90 |
| Owner/operator: | Private |
| Registration: | N8235W |
| MSN: | 5041 |
| Year of manufacture: | 1996 |
| Total airframe hrs: | 82 hours |
| Engine model: | Rotorway RI-162 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Evington, VA -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was approaching to land in his homebuilt helicopter. He was applying maximum power, but did not have sufficient rotor RPM. In an attempt to increase RPM, he lowered the collective, causing the helicopter to undershoot the intended landing point. The pilot could not touchdown at this point, because the field was at a 9 to 10 degree slope angle. Additionally, he did not have enough rotor RPM to hover up-slope. He made a 180 degree turn and flew down-slope. After the turn, the forward momentum plus the 1 to 2 knot headwind slightly increased rotor RPM. However, the pilot still did not have enough power to hover. He decided to perform a slide-on landing. During the landing, the right skid struck a mound of dirt, causing the helicopter to roll left. The main rotor blades struck the ground and tailboom. On July 22, 1999, the engine was inspected and operated at the manufacturer's facility. No interruptions, abnormalities, or discrepancies were found. The pilot reported a total flight experience of 110.5 hours, which 98.5 hours were in the accident helicopter. He received his private pilot license on December 4, 1998.
Probable Cause: The pilot's selection of unsuitable terrain for a run on landing. A factor was the dirt bank.
Accident investigation:
 |
|
Sources:
NTSB NYC99LA148
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 09-Mar-2024 11:15 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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