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Path: utzoo!linus!philabs!seismo!harpo!eagle!allegra!alice!alb
From: alb@alice.UUCP (Adam L. Buchsbaum)
Newsgroups: net.columbia
Subject: Answers to Problems -- STS-10 Set Back
Message-ID: <2417@alice.UUCP>
Date: Sat, 24-Dec-83 00:40:00 EST
Article-I.D.: alice.2417
Posted: Sat Dec 24 00:40:00 1983
Date-Received: Sun, 25-Dec-83 00:44:16 EST
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 10

NASA said yesterday that the computer problems faced on STS-9
were caused by microscopic bits of solder and gold dust floating
around in the computers themselves.  These particles caused
short circuits.  Also, a leaky washer in a main fuel control
valve in one APU has been pinned as the cause of at least one
of the two APU fires experienced during reentry of STS-9.

Because of the APU failures, NASA has decided to replace all
three APU's in Challenger with new units, setting the launch
of STS-10 back from 30 January to 3 February.