USAir Flight 499 Runway Overrun (N961VJ)

Approach and Landing Decision USAir Flight 499 was on approach in low ceiling, snow, and fog conditions. The crew had initially planned an ILS approach to runway 06, but the reported RVR was 2,800 feet, below the requested minimum of 4,000 feet. The crew elected to land on runway 24, where 1/2 mile visibility was sufficient. The approach was made with a quartering tailwind and approximately 10 knots above Vref. Tailwind landings were not authorized on runway 24 in wet or slippery conditions, and the runway braking action was reported as fair-to-poor. The aircraft touched down approximately 1,800 to 2,000 feet beyond the displaced threshold on the snow-covered runway. Although armed, the spoilers did not autodeploy, and the captain operated them manually. He lowered the nose, actuated reverse thrust, and applied brakes, but the brakes were not effective. The aircraft continued off the end of the runway, ran over a runway end id light, struck a fence, and came to rest straddling a road. One passenger was slightly injured, while 22 other occupants were uninjured.