This is the latest news:
Engineers feared shuttle wing burning
WASHINGTON (AP) --One day before the Columbia disaster, senior NASA engineers raised concerns the shuttle's left wing might burn off and cause the deaths of the crew, describing a scenario much like the one investigators believe happened.
They never sent their warnings to NASA's brass.
"Why are we talking about this on the day before landing and not the day after launch?" wrote William C. Anderson, an employee for the United Space Alliance LLC, a NASA contractor, less than 24 hours before the shuttle broke apart.
After intense debate -- occurring by phone and e-mails -- the engineers, supervisors and the head of the space agency's Langley research facility in Hampton, Virginia, decided against taking the matter to top NASA managers.
Jeffrey V. Kling, a flight controller at Johnson Space Center's mission control, foresaw with haunting accuracy what might happen to Columbia during its fiery descent if superheated air penetrated the wheel compartment.
Kling wrote just 23 hours before the disaster that his engineering team's recommendation in such an event "is going to be to set up for a bailout (assuming the wing doesn't burn off before we can get the crew out)."
The following day, Kling was among the first in mission control to report a sudden, unexplained loss of data from the shuttle's sensors in the left wing.
The e-mails released Wednesday describe a far broader discussion about the risks to Columbia than the concerns first raised three days earlier by Robert Daugherty, a NASA senior research engineer at Langley.
He was mostly concerned about the safety of the shuttle landing with flat tires or wheels damaged from extreme heat. Among the messages was one from Daugherty's boss at Langley, Mark J. Shuart, to another Langley supervisor, Doug Dwoyer, describing Daugherty as "the kind of conservative, thorough engineer that NASA needs."
"I can only hope the folks at (Johnson Space Center) are listening," Shuart wrote.
The shuttle broke apart during atmospheric re-entry on February 1, killing the crew of seven. They were only minutes away from landing in Florida.
Feb. 26th
http://cnn.com