ASN Wikibase Occurrence # 133068
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| Date: | Sunday 10 September 1995 |
| Time: | 15:45 LT |
| Type: |  Bell 206B JetRanger |
| Owner/operator: | U.s. Dept. Of Interior |
| Registration: | N84TA |
| MSN: | 594 |
| Year of manufacture: | 1970 |
| Total airframe hrs: | 8118 hours |
| Engine model: | ALLISON 250-C20 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Glennallen, AK -
 United States of America
|
| Phase: | Taxi |
| Nature: | Unknown |
| Departure airport: | , AK (KGKN) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot and passenger of a Bell 206B helicopter, N84TA, overheard radio transmissions about a float equipped Cessna 180A, N94259, that had become inverted on a lake. The helicopter pilot and passenger attempted a rescue of the stranded pilot, who had been sitting on the inverted floats of the airplane for about 5 hours and displayed symptoms of severe hypothermia and shock. A 30 knot wind was producing 3 to 4 feet waves. As the helicopter was hovered next to the airplane, the passenger partially stepped into an external load basket on the right side of the helicopter and began to assist the stranded pilot aboard the helicopter. At about that time, the helicopter began to roll to the right, and the main rotor blades struck the surface of the lake. The helicopter then impacted the lake and sank. The stranded pilot was struck by the helicopter's landing gear skid tube during the crash and received a serious chest injury. The pilot of a third aircraft (float equipped Beaver) observed the events and landed on the lake to rescue all of the participants. (See: ID Number ANC95LA164 for the initial accident involving the Cessna 180.)
Probable Cause: The pilot's improper in-flight planing/decision and inadequate supervision of the passenger, which allowed the helicopter's lateral center-of-gravity to be exceeded. Factors relating to the accident were: pressure (compelling influence) on the pilot and passenger that was induced by the need to rescue the stranded pilot from a life threatening situation, high winds, and large waves.
Accident investigation:
 |
|
Sources:
NTSB ANC95TA166
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 31-May-2023 09:33 | Ron Averes | Updated [[Time, Damage, Category, Investigating agency]] |
| 09-Apr-2024 12:04 | ASN Update Bot | Updated [Time, Operator, Total occupants, Other fatalities, Phase, Nature, Departure airport, Source, Narrative, Category, Accident report] |
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