41. It also is to be equipped with an Electrical Thrust Reverser Actuation System ( ETRAS ). 42. Planes can fly without thrust reversers for days. 43. The investigation was unable to determinate if the thrust reversers were intentionally activated and later deactivated. 44. Since 1994, however, there have been several instances of deactivated thrust reversers partially deploying on landing. 45. "It's not uncommon to deactivate a thrust reverser ," 46. Accidentally deploying a single engine's thrust reverser in flight might throw the plane out of control. 47. The deactivated thrust reverser on the number 2 engine was confirmed by Airbus on July 25. 48. Gustafsson applied thrust reverser and brakes, and tried to guide the plane through its control surfaces. 49. Thrust reversers are usually used in tandem, to prevent uneven forces that could make the plane turn.50. They also said that engine's thrust reverser had been repaired a little more than two months ago.
