Vliegtuigongeval op 28 OCT 1973 met Boeing 737-222 N751N - Greensboro/High Point Airport, NC (GSO)
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Status:Accident investigation report completed and information captured
Datum:zondag 28 oktober 1973
Tijd:22:21
Type:Silhouette image of generic B732 model; specific model in this crash may look slightly different
Boeing 737-222
Luchtvaartmaatschappij:Piedmont Airlines
Registratie: N751N
Constructienummer: 19548/114
Bouwjaar: 1968-12-22 (4 years 10 months)
Aantal vlieguren:9046
Motoren: 2 Pratt & Whitney JT8D-7A
Bemanning:slachtoffers: 0 / inzittenden: 4
Passagiers:slachtoffers: 0 / inzittenden: 92
Totaal:slachtoffers: 0 / inzittenden: 96
Schade: Groot
Gevolgen: Repaired
Plaats:Greensboro/High Point Airport, NC (GSO) (   Verenigde Staten)
Fase: Landing (LDG)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Charlotte-Douglas Airport, NC (CLT/KCLT), Verenigde Staten
Vliegveld van aankomst:Greensboro/High Point Airport, NC (GSO/KGSO), Verenigde Staten
Vluchtnummer: 20
Beschrijving:
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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Investigating agency: NTSB
Status: Investigation completed
Duration: 206 days (7 months)
Accident number: NTSB-AAR-74-7
Download report: Final report


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NTSB issued 7 Safety Recommendations

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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Charlotte-Douglas Airport, NC en Greensboro/High Point Airport, NC bedraagt 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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