ASN Wikibase Occurrence # 354720
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| Date: | Thursday 12 March 1998 |
| Time: | 18:25 LT |
| Type: |  Enstrom F-28A |
| Owner/operator: | Northstar Helicopters, Inc. |
| Registration: | N4884 |
| MSN: | 034 |
| Year of manufacture: | 1969 |
| Total airframe hrs: | 5833 hours |
| Engine model: | Lycoming HIO-360-C1A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Blue Ash, OH -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Training |
| Departure airport: | (KISZ) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter was under the control of a student pilot. Departing from a hover, and while climbing through an altitude of 50 to 60 feet above the ground, the pilot heard a loud bang and a high pitched whine. The pilot performed an autorotation. He reported that he touched down hard and started sliding on the grass. The nose pitched down, and the main rotor blades contacted the tail boom. Examination of the helicopter revealed a blade had separated from the engine-cooling fan and penetrated the shroud. The fan blades were held to the fan disk by 1 bolt and 2 rivets. Evidence of corrosion was found on the fan disk and the failed rivets.
Probable Cause: The failure of a cooling fan blade and the pilot's improper flare.
Accident investigation:
 |
|
Sources:
NTSB NYC98LA076
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Mar-2024 17:33 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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