Internetworkers: http://www.ibiblio.org/internetworkers/

[internetworkers AT lists.ibiblio.org (Greg Cox)]

> I believe the Columbia was never equipped to dock with the ISS.  This
> was mentioned along with the Columbia being the heaviest of the
> shuttles, since it was the first fully-operational unit, and the
> following ones were made lighter.
> 
> Is the ISS in a higher-orbit than the Shuttles normal reach?  Perhaps
> the Columbia was not able to reach it at all...

http://ltp.arc.nasa.gov/space/ask/parts/Shuttle_Modifications_for_IIS_Flights.txt

would answer this, but it's not responding.  The cached version:

http://216.239.57.100/search?q=cache:vvWPpzC_xV0C:ltp.arc.nasa.gov/space/ask/parts/Shuttle_Modifications_for_IIS_Flights.txt+columbia+iss+docking+orbit+%2Bheavier&hl=en&ie=UTF-8

 or

http://tinyurl.com/5a16


Also, just a guess: I'll bet it could reach it for rendezvous, if they
jettisoned payload and expended deorbit-burn fuel to get there.  But,
that'd be committing them to a stay, with no re-entry capabilities.
Armchair astronauting.