Narrative:
Piedmont Airlines Flight 20, a Boeing 737-200, ran off the end of runway 14 after landing at the Greensboro-High Point Airport, North Carolina. There were 92 passengers and 4 crewmembers aboard; 4 passengers and 1 flight attendant were injured slightly.
Flight 20 made an ILS approach to runway 14 and touched down at a faster-than-normal airspeed 2,600 feet beyond the approach end of the runway, during heavy rain showers. The aircraft ran off the end of the runway, and the three landing gears collapsed as the aircraft crossed a service road, 640 feet beyond the runway.
Probable Cause: "The probable cause of this accident was ineffective braking action caused by dynamic hydroplaning on a rain-flooded runway. Additional factors which contributed to the accident were: (1) An unstabilized downwind approach; (2) a relatively long, fast touchdown on a downsloping runway; (3) delayed deployment of the automatic spoilers; and, (4) failure of the crew to deploy the spoilers manually."
| Status: | Accident investigation report completed and information captured |
| Date: | Sunday 28 October 1973 |
| Time: | 22:21 |
| Type: |  Boeing 737-222 |
| Operator: | Piedmont Airlines |
| Registration: | N751N |
| MSN: | 19548/114 |
| First flight: | 1968-12-22 (4 years 10 months) |
| Total airframe hrs: | 9046 |
| Engines: | 2 Pratt & Whitney JT8D-7A |
| Crew: | Fatalities: 0 / Occupants: 4 |
| Passengers: | Fatalities: 0 / Occupants: 92 |
| Total: | Fatalities: 0 / Occupants: 96 |
| Aircraft damage: | Substantial |
| Aircraft fate: | Repaired |
| Location: | Greensboro/High Point Airport, NC (GSO) ( United States of America)
|
| Phase: | Landing (LDG) |
| Nature: | Domestic Scheduled Passenger |
| Departure airport: | Charlotte-Douglas Airport, NC (CLT/KCLT), United States of America |
| Greensboro/High Point Airport, NC (GSO/KGSO), United States of America | |
| Flightnumber: | 20 |
Piedmont Airlines Flight 20, a Boeing 737-200, ran off the end of runway 14 after landing at the Greensboro-High Point Airport, North Carolina. There were 92 passengers and 4 crewmembers aboard; 4 passengers and 1 flight attendant were injured slightly.
Flight 20 made an ILS approach to runway 14 and touched down at a faster-than-normal airspeed 2,600 feet beyond the approach end of the runway, during heavy rain showers. The aircraft ran off the end of the runway, and the three landing gears collapsed as the aircraft crossed a service road, 640 feet beyond the runway.
Probable Cause:
Probable Cause: "The probable cause of this accident was ineffective braking action caused by dynamic hydroplaning on a rain-flooded runway. Additional factors which contributed to the accident were: (1) An unstabilized downwind approach; (2) a relatively long, fast touchdown on a downsloping runway; (3) delayed deployment of the automatic spoilers; and, (4) failure of the crew to deploy the spoilers manually."
Accident investigation:
 |
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Classification:
Runway excursion
Follow-up / safety actions
NTSB issued 7 Safety Recommendations
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Photos
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 Charlotte-Douglas Airport, NC to Greensboro/High Point Airport, NC as the crow flies is 133 km (83 miles).
Distance from Charlotte-Douglas Airport, NC to Greensboro/High Point Airport, NC as the crow flies is 133 km (83 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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