ASN Wikibase Occurrence # 297234
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| Date: | Thursday 30 May 2002 |
| Time: | 08:30 LT |
| Type: |  Bell 206 |
| Owner/operator: | Ohio Department Of Transportation |
| Registration: | N820H |
| MSN: | 2079 |
| Year of manufacture: | 1976 |
| Total airframe hrs: | 6946 hours |
| Engine model: | Allison C20B |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Columbus, Ohio -
 United States of America
|
| Phase: | Unknown |
| Nature: | Training |
| Departure airport: | Columbus-Ohio State University Airport, OH (OSU/KOSU) |
| Columbus-Ohio State University Airport, OH (OSU/KOSU) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During an instructional flight, the flight instructor rolled the throttle to idle. The pilot lowered the collective and entered an autorotation. At first, the pilot did not think he was going to make his intended touchdown point, and wanted to increase airspeed, but the instructor told him to slow the helicopter to 50 knots. The pilot applied aft cyclic, and airspeed decreased to about 40 knots. The pilot was now sure he would not make his intended touchdown point by maintaining 50 knots, so he lowered the nose. As airspeed increased, the pilot realized he was going to overshoot, so he initiated a left, and then a right turn to lose altitude. The pilot initiated a flare, applied initial collective, and then used additional collective to cushion the landing. Rotor RPM decayed during the landing sequence, and the helicopter touched down hard on the aft part of the skids, and then rocked forward, doing substantial damage to the tailboom, and main transmission mounts.
Probable Cause: The flight instructor's delay in applying remedial action. A factor in the accident was the pilot allowing the rotor rpm to become too low during the deceleration and touchdown phase of the autorotation.
Accident investigation:
 |
|
Sources:
NTSB NYC02LA105
History of this aircraft
Other occurrences involving this aircraft
| 4 February 2021 | N820H | Roma Air Corporation | 0 | Pahokee, Florida | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Oct-2022 16:08 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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