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Authored by: Anonymous on Monday, July 08 2013 @ 10:59 AM EDT |
They were doing a VFR approach over the bay in effectively a no-wind condition.
Thus the water surface was a flat calm mirror. Depth perception is very
difficult.
Also They were doing a straight approach from 18 thousand feet. Not a lot of
visual cues to acquire valid visual altitude reference, or to recheck during the
approach.
It could well be that all four pilots acquired a shared erroneous depth
judgement.
Worse, from early reports, it appears they were HIGH on the approach for most of
it, and went through the glide path only as they got in close.
Don't know what VASI SF has, but its possible that they knew they were high
early on, and when they got close enough to see the VASI they got the reds but
didn't realize HOW low they really were and maybe, maybe, subconciously
discounted the reds because they had been above the glide slope for so long
earlier.
So to answer your question, this might have been a synchronized error.
JG
[ Reply to This | Parent | # ]
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- Shared Error - Authored by: Anonymous on Monday, July 08 2013 @ 12:07 PM EDT
- Shared Error - Authored by: Anonymous on Monday, July 08 2013 @ 02:09 PM EDT
- Straight In Approach? - Authored by: Anonymous on Monday, July 08 2013 @ 04:32 PM EDT
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