A private plane crashed while landing in foggy conditions in California last year, killing everyone on board.
The NTSB confirmed that the approach lights that help guide pilots were not working at the time.
11 Investigates has learned that similar lights at the Allegheny County Airport and some other regional airports in our area are quietly being phased out.
11 Investigates Rick Earle is trying to find out why, tonight on Channel 11 News at 5:30 p.m.
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