From: utzoo!decvax!harpo!ihnp4!ihps3!houxz!houxi!houxa!houxm!npois!npoiv!alice!sjb Newsgroups: net.columbia Title: Possible Main Engine Problem Article-I.D.: alice.1338 Posted: Fri Dec 24 07:18:50 1982 Received: Mon Dec 27 02:06:04 1982 Officials have delayed announcing a firm launch date for STS-6 until the first week in January in order to more carefully examine a possible fault detected by the test firing of the Challenger's three main engines last Saturday. Preliminary data indicates a higher than expected concentration of hydrogen in the rear compartment of the shuttle following the test. Officials, who had planned to announce a date yesterday, will wait until the cause is found and a remedy determined to announce the date. 27 January had been the target date since the test firing.