alb@alice.UUCP (12/09/83)
As John Young was firing a steering jet yesterday morning, before the initially scheduled deorbit burn, a hard jolt hit the space shuttle. It was followed by the failure of two computers and an Inertial Measurement Unit. One of the computers was restored, the other turned off, leaving the Columbia with four; the IMU was turned off, leaving the shuttle with two others, only one of which was needed for landing. NASA said the astronauts and the shuttle were never in any danger, but they delayed the landing only to fully understand the problem. If another extension had been necessary, the shuttle had enough supplies for two more days in orbit.