Articles for tag Oktaha
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Apr
30
2026
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Posted by Admin
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On July 26, 2024, at 10:40 Central Daylight Time, a Viking Aviation LLC, doing business as Survival Flight, Bell 407 helicopter, powered by a single Rolls-Royce Corporation model M250- C47B turboshaft engine, experienced an uncontained engine failure while traveling to refuel after dropping off a patient. The engine failure necessitated a forced landing in a field. The pilot reported the incident occurred during the third flight of the day while using night vision goggles (NVG) from Oklahoma City, Oklahoma (OK) to Okmulgee, OK with the autopilot engaged and the helicopter in level flight at 2,000 feet mean sea level (MSL), 1,400 feet above ground level (AGL). The pilot reported that the cockpit gauges indicated the engine torque to be 78%, the gas producer temperature (NGT) 707°C-710°C, and gas producer rotor speed (Ng also commonly referred to as N1) at 98.6%.
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NTSB Report
OK
Oktaha
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