ASN Wikibase Occurrence # 30782
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| Date: | Monday 5 April 1999 |
| Time: | 10:00 LT |
| Type: |  Bell 206L-1 LongRanger II |
| Owner/operator: | Air Flite Inc. |
| Registration: | N255AL |
| MSN: | 45602 |
| Year of manufacture: | 1982 |
| Total airframe hrs: | 5563 hours |
| Engine model: | Allison C250-28B |
| Fatalities: | Fatalities: 0 / Occupants: 6 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near Shawnee, Oklahoma -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | , OK (KSNL) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The main rotor blades struck and severed the tailboom of the helicopter during a hard landing following a loss of engine power. The helicopter departed the airport to the southwest and climbed to 400 feet AGL. The pilot turned the helicopter downwind and leveled the aircraft. He set 'cruise power' and the engine 'spooled down.' The pilot performed an autorotation to a muddy, grassy field and landed hard. The engine was test run and it was determined that the fuel scheduling was incorrect as the turbine outlet temperature would exceed the maximum allowed. After replacement of the fuel control unit, the engine was 'found to meet new engine performance at all guarantee test points.' The fuel control unit was functionally tested and operated within service limits. The reason for the loss of engine power could not be determined.
Probable Cause: The improper flare during an autorotation by the pilot-in-command. A factor was the loss of engine power for an undetermined reason.
Accident investigation:
 |
|
Sources:
NTSB FTW99LA105
FAA register: NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001205X00461&key=1
FAA register: 2. http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=255AL
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Sep-2008 01:00 | ASN archive | Added |
| 10-Apr-2015 17:15 | Dr. John Smith | Updated [Date, Time, Aircraft type, Registration, Cn, Operator, Total fatalities, Total occupants, Other fatalities, Location, Country, Phase, Nature, Departure airport, Source, Damage, Narrative] |
| 26-Nov-2017 12:40 | ASN Update Bot | Updated [Time, Operator, Total occupants, Nature, Departure airport, Source, Damage, Narrative] |
| 08-Apr-2024 07:42 | ASN Update Bot | Updated [Time, Other fatalities, Phase, Departure airport, Source, Narrative, Category, Accident report] |
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