[GovernmentShrinker]

Old model tank used on this mission. Hadn't been used for a long time (more recent missions used newer, lighter model). NASA current press kit misidentifies this mission's tank as being the newer model. Sonar5's direct communication with someone at Michoud confirmed it was actually the older model.

[Cold Heat]

As a addendum to the above, I must say that the tank problem had been mitigated after 1997, and they honestly thought they had fixed it.