Report of the PRESIDENTIAL COMMISSION
on the Space Shuttle Challenger Accident
Volume 5 Index
Hearings of the Presidential
Commission on the Space Shuttle Challenger Accident: February 26,
1986 to May 2, 1986.
FEBRUARY 27, 1986 SESSION
 [Ref. 2/27-9] Ice
Drebis on FSS (Fixed Service Structure) at 140-foot level.