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51L to pad 21 DEC (no rain protection on PAD B).

• 1st off Pad B-- get list of diff. Pad A vs Pad B (part of launch "configuration"). (NOTE: MLP had been used many times)

• prelaunch:
hatch problem
WX bad (1 day slip for rain, one for RTLS XWIND)

very low temp: H20 pipe on facility burst
ice on facility because H20 left dripping

L-1: concern for T effects on systems & facilities (T predicted ~20°). No concern for vehicle, only facility. Thought countdown would be more difficult---had to re-fill H20

Transcription Notes:
unsure how to render bracket after "very low temp" mid-page