3 were deemed healthy, NASA replaced engine No. The agency then took several months to remove the engines and test them. 25, 1983, NASA discovered cracks in the engine that were causing the leak. 1 main engine aft compartment during a flight readiness test in December, according to Science.ksc. But several technical malfunctions pushed the launch back.įirst, NASA discovered a hydrogen leak in the No. 20, 1983, to release the first Tracking and Data Relay Satellite (TDRS), which later became part of a series of satellites that astronauts used to stay in touch with controllers back home. Delays for the first flightĬhallenger was expected to go into space on Jan. Among other things, workers had to strengthen the wings, put in a real crew cabin instead of a simulated one and install heads-up displays for the astronauts working inside. It took two more years for Rockwell to perform the conversion. This would expand the shuttle fleet to two spacecraft, with Columbia being the first, though this would similarly end in disaster. ![]() In 1979, NASA awarded Rockwell International a supplemental contract to convert the test vehicle to a spacecraft. of force, were used as substitute space shuttle main engines. Three hydraulic cylinders, each with 1 million lbs. ![]() ![]() This custom-designed machine could bring the shuttle through a simulation of all phases of flight, from liftoff to landing. The shuttle, then known as STA-099, went through 11 months of vibration testing in a specially formulated rig, NASA said.
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