CAPE CANAVERAL, Fla. - Maybe NASA's managers still view the shuttle as the Cadillac of space technology, but they sometimes make it sound as if it were a cranky old Ford with a few too many miles on it.
Deputy shuttle manager Wayne Hale says its recent on-again, off-again electronics problem "reminds me of an old truck I own."
Delays for safety improvements have repeatedly thwarted the shuttle's comeback from the Columbia catastrophe 2 1/2 years ago. But aging components could eventually add their own setbacks and risks to flying as the shuttles near retirement in just five years, according to authorities on space travel.
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