Accident Sequence
On the night of the accident, Capital Flight 67 departed and, four minutes after takeoff at 2306, reported to the tower that it was at 3,600 feet and departing the Flint outer marker. The tower requested the estimated time of arrival at Tri-City, and the flight advised 2315. The flight was then cleared by ARTC to hold north of the Saginaw omni range at 3,600 feet with a one-minute pattern, right turn, and to expect further clearance at 2320, changing to company frequency. The flight acknowledged and switched to the company frequency at Detroit. At 2310, the company relayed clearance for an approach at Saginaw (Tri-City) Airport and instructed the flight to report time on the ground to Saginaw radio. The flight verified and then contacted Saginaw ATCS, receiving the 2300 weather observation and that Runway 5 was in use. Tri-City Airport has no control tower.
The 2300 Saginaw weather reported: measured ceiling 900 feet overcast, visibility 3 miles, light snow showers, temperature 34°F, dewpoint 33°F, wind north-northeast at 18 knots gusting to 27 knots, altimeter 29.48 inches. Remarks noted that drizzle ended and snow showers began at 2225.
At 2316, Flight 67 advised Saginaw radio that it was over the airport. Ground witnesses then observed the aircraft's lights on the downwind leg of the traffic pattern. The aircraft made a left turn onto base leg, and its landing lights came on. During this approach, the aircraft flew beneath the estimated 900-foot overcast and appeared to be descending. While turning onto final, the aircraft flew beyond the extended centerline of the runway and the turn steepened for realignment. Soon after, the aircraft leveled off, then descended steeply and struck the ground. A large fire erupted immediately. The aircraft was totally destroyed, and all 47 occupants were killed.
Investigation
The official investigation determined the probable cause of the accident.