, LANGLEY AIR FORCE BASE: An MQ-1L Predator crash during a training mission June 22 at Creech Air Force Base, Nev., was the result of mechanical error, according to an aircraft accident investigation report released Nov. 30.
There were no injuries or fatalities from the accident; and other than the loss of the aircraft, no government property was damaged.
The Predator, valued at $4.7 million, was assigned to the 11th Reconnaissance Squadron at Creech AFB.
The accident investigation board determined the primary cause of the accident was a rapid loss of engine oil due to a loose oil filter. Board members could not determine the precise cause for the loose oil filter, but it was most likely due to improper installation.
Additionally, board members found substantial evidence that an inadequately designed oil filter was a contributing factor in the mishap. The oil filter is not designed to lock in place or with visible marks to help ensure proper installation.
Approximately five minutes into the training mission, the Predator experienced a rapid loss of engine oil followed by engine failure. The low altitude and loss of power prohibited the aircraft from landing safely.
The pilot controlling the aircraft elected to intentionally steer the Predator into a hill next to the runway to avoid injuring ground members or harming equipment.
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