The Orion, operated by the U.S. National Oceanic and Atmospheric Administration, was orbiting at 3,000 ft over the Atlantic Ocean in night instrument meteorological conditions (IMC) on Nov. 9, 2007, when compressor stalls and tailpipe fires occurred in three of the four engines. The incident occurred 540 nm (1,000 km) east of St. John's, Newfoundland, Canada, according to a report published by NTSB in May. The no. 3 engine malfunctioned first, followed moments later by the no. 4 and no. 1 engines. The aircraft commander (AC) told the flight engineer (FE) to shut down the no. 3 and no. 4 engines, apparently due to fire warnings for those engines.
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