Originally Posted by
Clinton McKenzie
My (educated) guess is that the zealots' obsession with PAPI arises from the Tallahassee 727 NTSB report. They cling to conclusion 13 of 16 conclusions of the report, which conclusion is that: “The first officer suffered from a severe colour vision deficiency that made it difficult for him to correctly identify the colour of the precision approach path indicator signal during the below-glidepath, nighttime, visual approach to runway 9 at Tallahassee Regional Airport.”
Upon my initial skim through the accident report, that was my reaction too. How can they raise this without raising the fact that two others in the cockpit didn’t see anything untoward? Doesn’t make any sense. Whereas potentially contaminated lenses seem to be the single point of failure that could have fooled all three.
What went wrong?
Does anyone have CVD?
Find a link to CVD
seems to be the method of investigation.