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February 17, 2009

Comments

John

That's a fair assessment. I just (thought I) remembered an NTSB statement suggesting that it wasn't significant. I may be thinking of something else or could have misinterpreted, though.

Ah! I see now. It's the autopilot story that the NTSB rejected. Too many stories appeared in a short span for me to keep it straight.

Bill Korbel

As far as I know, NTSB has not ruled out icing. Several aircraft coming into Buffalo reported moderate ice below about 8,000' and the accident crew talked about ice. They also had the deice system operating. If not a prime cause I am sure NTSB will say it was a major factor.

Bill Korbel

John

I know it's still in the AP reports, but didn't the NTSB already rule out ice?

There was no mention of freezing on the recorder (the Chicago Tribune has a transcript at http://www.chicagotribune.com/news/chi-flight3407-transcript-feb13,0,7376989.htmlstory), other than a small buildup from the start of descent, which both the pilot and tower seem to have considered normal, at 25:03.

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