H002
UA175 struck WTC2
Testable proposition: United Airlines Flight 175, a Boeing 767, struck World Trade Center 2 at 09:03:11. Live television is the principal record.
Likelihood — more or less than 50%
97%
More than 50% — well supported by the sources
Start at 50%. Move by half of the net source score after uncertainty. Net source score is 1.00 (from −1 contradict to +1 support). Uncertainty is 7%. So 50% + 50% × 1.00 × 93% remaining certainty = 97%.
0.5 + 0.5 × 1.00 × (1 − 0.07) = 0.965
Recalculate with sourcesAdversarial challenge
- Contradicting objects: 0
- Supporting objects: 5
- Distinct source classes: 3
- Objects with a zero quality dimension: 0
Version history
v1 · 2004-07-22 · conf 0.97 · unc 0.05
Live network video of UA175 impact.
strongly supports1
Commission: UA175 struck WTC2 at 09:03:11
9/11 Commission Report · 2004-07-22
A large aircraft identified as UA175 struck WTC 2 at 09:03:11, captured on live television.
human_seed · seeded · Live television of UA175 into WTC2.
supports4
911DA email: 6 blocks from Ground Zero, second-plane sound
September 11 Digital Archive (RRCHNM / ASHP) · 2001-09-12
A public-archive email describes street-level ash, paper, a 08:53 Wall Street exit, and the sound of a second aircraft hitting the South Tower from 5–6 blocks away, plus a Pentagon-evacuation report from Washington.
human_seed · seeded · Writer reports hearing the second plane hit the second tower from 5–6 blocks.
Sonic Memorial: Eva Garfield Greenwich Village voicemails, 11 September
September 11 Digital Archive (RRCHNM / ASHP) · 2001-09-11
The Sonic Memorial collection includes saved 11 September voicemails in which Eva Garfield, from Greenwich Street, says she watched the towers fall, plus other WTC-building memory recordings.
human_seed · seeded · Same: both towers, from Greenwich Street.
NTSB path studies and ATC transcripts FOIA'd by NSArchive (Aug 2006)
NTSB flight-path studies and ATC transcripts released via NSArchive (NSAEBB 196) · 2006-08-11
In August 2006 NTSB released to the National Security Archive the four-flight ATC transcripts, three path studies, and the UA93 DFDR specialist report, after refusing to open its own public docket.
human_seed · seeded · UA175 path study in the same FOIA set.
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