Approach and Landing
An aircraft was conducting an instrument landing system (ILS) approach to runway 17. The reported visibility at the time was 1/4 mile in fog, which was below the published minimum approach visibility of 1/2 mile. According to the pilots, during the approach, the copilot reported seeing the approach lights 100 feet above decision height (DH) and the runway in sight at decision height. The pilot visually acquired the runway a few seconds later and continued toward the runway for landing.
Passenger Observations
Several passengers reported that the airplane subsequently floated or landed long. The pilot stated that as the aircraft settled in for landing, he observed the touchdown zone markers at the departure end approaching rapidly.
Overrun and Damage
The airplane overran the runway, coming to a stop in the dirt 442 feet beyond the departure end. During the overrun, the aircraft's right main landing gear collapsed.