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Accident
Last updated: 22 October 2017
Statuts:Enquête Officielle
Date:samedi 6 janvier 1990
Heure:11:42
Type/Sous-type:Silhouette image of generic L29B model; specific model in this crash may look slightly different
Lockheed L-1329 JetStar 731
Compagnie:Grecoair
Immatriculation: N96GS
Numéro de série: 5068
Année de Fabrication: 1965
Heures de vol:8791
Moteurs: 4 Garrett TFE731-3
Equipage:victimes: 1 / à bord: 2
Passagers:victimes: 0 / à bord: 0
Total:victimes: 1 / à bord: 2
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Miami International Airport, FL (MIA) (   Etats-Unis d'Amérique)
Élévation des lieux de l'accident: 2 m (7 feet) amsl
Phase de vol: Au décollage (TOF)
Nature:Convoyage
Aéroport de départ:Miami International Airport, FL (MIA/KMIA), Etats-Unis d'Amérique
Aéroport de destination:Dallas-Love Field, TX (DAL/KDAL), Etats-Unis d'Amérique
Détails:
A Lockheed L-1329 JetStar four engine corporate jet was damaged beyond repair in a runway excursion accident at Miami International Airport, FL (MIA).
The flight was a 3-engine ferry flight to Dallas-Love Field, TX (DAL) with the no. 4 engine shut down. During takeoff roll at V1 the no. 2 engine overheat light came on. According to the copilot the pilot reduced throttle slightly and continued the takeoff. After lift-off the pilot aborted the takeoff. The airplane could not be stopped on the remaining runway and collided with antennas, approach lights and a construction site 1,180 ft from the departure end of runway 09L. Post-crash examination of the 3 operating engines did not reveal any evidence of mechanical failure or malfunction. A failed resistor was found in the no. 2 engine electronic engine control (EEC). This would cause the unit to over-schedule fuel to the engine resulting in hotter engine operating temperatures. Retarding the throttle would reduce fuel flow to within normal ranges for engine operation. Under conditions that existed at the time of the accident, the airplane would have a 3-engine rate-of-climb of 1,398 fpm, and a 2-engine rate-of-climb of 350 fpm.

Probable Cause:

PROBABLE CAUSE: "The pilot's improper decision to reject the takeoff after the airplane had passed V1 speed and lifted off the runway. A factor was a malfunctioning #2 engine electronic engine control which caused the unit to over-schedule fuel to the engine resulting in hotter operating temperatures."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 2 years and 4 months
Accident number: MIA90FA049
Download report: Summary report

Sources:
» NTSB


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Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Miami International Airport, FL et Dallas-Love Field, TX est de 1773 km (1108 miles).
Accident location: Approximate; accuracy within a few kilometers.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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