New York-JFK – Lexington

On February 27, 1986 at 10:30 PM, New York-JFK – Lexington experienced a crash involving Dassault Falcon 10, operated by Seneca Sawmill Company, with the event recorded near Coatesville-Chester County-G. O. Carlson Pennsylvania.

The flight was categorized as executive/corporate/business and the reported phase was landing (descent or approach) at a airport (less than 10 km from airport) crash site.

6 people were known to be on board, 0 fatalities were recorded, 6 survivors were identified or estimated. This corresponds to an estimated fatality rate of 0.0%.

Crew on board: 2, crew fatalities: 0, passengers on board: 4, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is technical failure. As the aircraft was climbing thru 19,000 feet at night, the #2 generator (gen) light came on. The flight crew noted there was no output from the #2 gen and it would not reset. They then checked the #1 gen voltage and noted it was 14 to 15 volts. The crew reduced the electrical load; however, about 5 minutes later, the batteries became discharged and there was a total loss of electrical power. Using a flashlight, the crew diverted to the Chester County Airport which had a 4,600 feet runway. The gear was extended with the emergency system. The elevator trim was inoperative, so both pilots applied back pressure on the yoke to overcome the nose down tendency. After landing about 1/4 of the way down the runway, the crew tried to use the thrust reversers, but the reversers were inoperative. Subsequently, the aircraft continued off the side and beyond the end of the runway, hit a wooden beam and a snowbank, then came to rest in a ditch. An investigation revealed a shaft failure of the #2 gen (starter/gen) and worn brushes in the #1 gen. With total electrical failure, the following were also inoperative: wing flaps, anti-skid, capt's airspeed indicator and altimeter, nose wheel steering, cockpit lighting.

Aircraft reference details include registration N821LG, MSN 170, year of manufacture 1980.