Re:SFO near miss might have triggered aviation disaster
by rconti on Tuesday July 11, 2017 @11:43AM
(#14745095)
"...including the installation of an unlit, nonreflective elevated lighted X at the threshold of taxiway Tango..."
Unlit lighted X. Right.
Re:SFO near miss might have triggered aviation disaster
by shuntress on Tuesday July 11, 2017 @01:35PM
(#14746124)
My assumption based on nothing in particular is that one (of unlit/lighted) means 'Lights contained within the X illuminating it from within' and the other means 'Lights external to the X illuminating it from without'
> SEA-TAC personnel have been very proactive in trying to reduce the problem, including the installation of an unlit, nonreflective elevated lighted X at the threshold of taxiway Tango; broadcasting a notice on the Automatic Terminal Information Service (ATIS) not to mistake the parallel taxiway for the adjacent runway; posting warnings on aeronautical charts not to mistake the taxiway for runway 16R; and the development of numerous training aids and brochures that explain the problem to transient pilots traveling through SEA-TAC.
(Testing of multiple methods begins on page 5)
http://www.airtech.tc.faa.gov/safety/downloads/TN07-54.pdf