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Re:NTSB Issues Investigative Update on San Francisco Airport... by mseebach on Thursday August 03, 2017 @02:51AM (#14917482)
Well, they were off by one in adjusting the length of their internal model of the dataset (two runways) with the currently active model (one) and thus suffered a buffer overflow.

Anyway, score one (more) for the robots, who would have picked up the correct ILS localizer.

Re:NTSB Issues Investigative Update on San Francisco Airport... by joezydeco on Thursday August 03, 2017 @10:51AM (#14920056)
So this flight had no ILS, or ILS was turned off?
Re:NTSB Issues Investigative Update on San Francisco Airport... by asclepi on Friday August 04, 2017 @03:13PM (#14931182)
The crew flew a visual approach (guided by human eyes) instead of an ILS approach.

In the words of the investigation: "At 2346:30 PDT, Northern California TRACON cleared ACA759 for the FMS bridge visual runway 28R approach."