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Accident description
Last updated: 23 October 2017
Status:Final
Date:Thursday 28 April 1977
Time:20:38
Type:Silhouette image of generic H25A model; specific model in this crash may look slightly different
Hawker Siddeley HS-125-600A
Operator:Southern Company Services
Registration: N40PC
C/n / msn: 256010
First flight: 1973
Total airframe hrs:1904
Engines: 2 Rolls-Royce Viper 601-22
Crew:Fatalities: 2 / Occupants: 2
Passengers:Fatalities: 2 / Occupants: 2
Total:Fatalities: 4 / Occupants: 4
Airplane damage: Damaged beyond repair
Location:near McLean, VA (   United States of America)
Phase: En route (ENR)
Nature:Executive
Departure airport:Washington-National Airport, DC (DCA/KDCA), United States of America
Destination airport:Birmingham Airport, AL (BHM/KBHM), United States of America
Narrative:
Failure or malfunction of an undetermined nature in the pilot's attitude indicating system led to a loss of control and overstress of the aircraft structure. The HS-125 was climbing through 9300 feet after departing Washington-National.

Probable Cause:

PROBABLE CAUSE: "A failure or malfunction of an undetermined nature in the pilot's attitude indicating system which led to a loss of control and overstress of the aircraft structure."

Classification:


Loss of control

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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Washington-National Airport, DC to Birmingham Airport, AL as the crow flies is 1043 km (652 miles).
Accident location: Approximate; accuracy within a few kilometers.

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