A brake-metering-valve failure caused a B-1B Lancer to collide with two aircraft rescue firefighting vehicles March 7 in Guam, according to an Air Combat Command accident investigation board released here Sept. 2.
The board determined the aircraft began to roll forward after engine shutdown at Andersen Air Force Base, Guam.
Malfunction of the right-hand brake-metering valve caused depletion of the associated brake-system accumulators, rendering the aircraft's brake systems inoperative when the engines shut down.
More Info
