(CNN) — Investigators have found no mechanical problem that would have led to August's deadly crash of a UPS cargo plane in Birmingham, Alabama, a National Transportation Safety Board official testified Thursday at a hearing in Washington.
The testimony came at an NTSB hearing into the August 14 crash that killed the plane's two-person flight crew -- Capt. Cerea Beal Jr. and First Officer Shanda Fanning. The Airbus A300 slammed into an open field, short of a runway at Alabama's Birmingham-Shuttlesworth International Airport.
Investigators found "no anomalies" with the airplane, its systems, or its warning devices, NTSB investigator-in-charge Dan Bower testified Thursday.
The board is expected to determine the probable cause of the crash later this year.
A preliminary probe last year found no signs of a fire aboard the jet before it went down. The crew did not report any trouble before the crash, Birmingham Mayor William Bell told reporters previously.