ASN Wikibase Occurrence # 284496
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| Date: | Wednesday 1 August 2007 |
| Time: | 14:00 LT |
| Type: |  Beechcraft B60 Duke |
| Owner/operator: | Private |
| Registration: | N529R |
| MSN: | 529 |
| Total airframe hrs: | 3950 hours |
| Engine model: | Lycoming TIO-541 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Bismark, North Dakota -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Bismarck Airport, ND (BIS/KBIS) |
| Detroit Lakes Municipal Airport, MN (DTL/KDTL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane made a forced landing following a loss of power from both engines. The pilot reported that he had called the fixed base operator at the airport to have them pull his airplane out and to have 30 gallons of fuel added to each side. He stated that when he arrived at the airport, the fuel had already been added to the airplane. He stated that he performed a pre-flight examination of the airplane which included visual checks of the fuel which was blue in color, consistent with 100LL aviation gasoline. The pilot reported that the subsequent start-up, taxi and pre-takeoff checks were normal and he proceeded to takeoff. He stated that at about 32 inches of manifold pressure the left engine stumbled and he aborted the takeoff. After taxi back to the runway, the pilot performed another run-up and attempted another takeoff which again resulted in an aborted takeoff. The pilot stated that he then returned to the maintenance area where a mechanic boarded the airplane and a full power run-up was performed. No anomalies were noted during the full power run-up. After the mechanic deplaned, the pilot returned to the runway and was again cleared for takeoff. He stated that he entered the runway, held his brakes, and increased the power to 35 inches of manifold pressure. He stated that he checked the engine gauges and all were normal and he applied full power and proceeded to takeoff. After liftoff, the pilot noticed a fluctuation in the right engine's manifold pressure and he began a gradual left turn. He stated that the manifold pressure and fuel flow indications for both engines then began to fluctuate. The pilot's attempts to rectify the power fluctuations were unsuccessful and an eventual off-airport forced landing was made. The pilot reported that he had to maneuver the airplane to avoid trees, cars, houses and people during the forced landing. A fuel receipt from the fixed base operator revealed that the airplane had been fueled with aviation jet fuel.
Probable Cause: The improper fuel grade due to the improper fueling of the airplane by the fixed base operator, which led to the loss of engine power of both engines. A factor was the unsuitable terrain encountered during the forced landing.
Accident investigation:
 |
|
Sources:
NTSB CHI07CA248
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Sep-2022 17:36 | ASN Update Bot | Added |
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