Accident
Last updated: 27 August 2014
Estado:Final
Fecha:sábado 21 mayo 1988
Hora:16:12
Tipo:McDonnell Douglas DC-10-30
Operador:American Airlines
Registración: N136AA
Numéro de série: 47846/69
Año de Construcción: 1973
Horas Totales de la Célula:61322
Ciclos:12864
Motores: 3 General Electric CF6-50C2
Tripulación:Fatalidades: 0 / Ocupantes: 14
Pasajeros:Fatalidades: 0 / Ocupantes: 240
Total:Fatalidades: 0 / Ocupantes: 254
Daños en la Aeronave: Considerable
Consecuencias: Written off (damaged beyond repair)
Ubicación:Dallas/Fort Worth International Airport, TX (DFW) (   Estados Unidos de América) show on map
Fase: Despegue (TOF)
Naturaleza:Vuelo Internacional Programado
Aeropuerto de Salida:Dallas/Fort Worth International Airport, TX (DFW/KDFW), Estados Unidos de América
Aeropuerto de Llegada:Frankfurt International Airport (FRA/EDDF), Alemania
Número de Vuelo: 70
Descripción:
The crew of American Flight 70 rejected the takeoff when the slat disagree light illuminated and the takeoff warning horn sounded at 166 knots (V1), but the aircraft accelerated to 178 knots ground speed before it began to decelerate. The deceleration was normal until 130 knots where an unexpected rapid decay in the deceleration occurred. The aircraft ran off the end of the runway at 95 knots, the nose gear collapsed, and the aircraft came to a stop 1,100 feet beyond the end of the runway. Eight of the ten brake sets failed. Post-accident examination of the brakes revealed that excessive brake wear occurred during the rejected takeoff. Testing showed that DC-10 worn brakes have a much greater wear rate during a rejected takeoff. The FAA did not require worn brake testing. Douglas did not use brake wear data from rto certification tests to set more conservative brake wear replacement limits. New brakes were used for those tests.

PROBABLE CAUSE:
landing gear, normal brake system .. inadequate
acft/equip,inadequate aircraft component .. manufacturer
inadequate substantiation process .. manufacturer
inadequate certification/approval, aircraft .. FAA (organization)
landing gear, normal brake system .. failure, total
CONTRIBUTING FACTORS
flt control syst,wing slat system .. false indication

Fuentes:
» Aviation Week & Space Technology 5.3.90 (78)
» ICAO Adrep Summary 4/90 (#26)
» NTSB/SIR-90/02 (5)


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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 Dallas/Fort Worth International Airport, TX to Frankfurt International Airport as the crow flies is 8203 km (5127 miles).

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