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Last updated: 18 June 2021
Statuts:Enquête Officielle
Date:dimanche 23 juin 1996
Heure:11:16
Type/Sous-type:Silhouette image of generic E120 model; specific model in this crash may look slightly different
Embraer 120RT Brasilia
Compagnie:Comair
Immatriculation: N168CA
Numéro de série: 120168
Année de Fabrication: 1989
Heures de vol:16775
Moteurs: 2 Pratt & Whitney Canada PW118
Equipage:victimes: 0 / à bord: 3
Passagers:victimes: 0 / à bord: 29
Total:victimes: 0 / à bord: 32
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Orlando International Airport, FL (MCO) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Intern.
Aéroport de départ:Nassau International Airport (NAS/MYNN), Bahamas
Aéroport de destination:Orlando International Airport, FL (MCO/KMCO), Etats-Unis d'Amérique
Numéro de vol:3599
Détails:
An Embraer EMB-120, N168CA, experienced a landing gear failure on arrival at the Orlando International Airport, Florida, USA. The flightcrew completed emergency procedures with negative results, and an emergency landing was made.
The pilot-in-command stated on descent into the Orlando area the hydraulic master caution warning light illuminated, followed by the low level advisory light on the green hydraulic system. He instructed the first officer to review the loss of hydraulic pressure procedure in the quick reference handbook. The hydraulic master caution warning light illuminated again, followed by the low pressure advisory light on the green hydraulic system. The fluid level was pointing to the yellow, the hydraulic pressure was decreasing, and the light for the green system was flashing on and off. The flightcrew concluded that the green hydraulic system was empty and the green electric hydraulic pump was turned off. They discussed what systems would be lost in the event of a total failure of the green hydraulic system, and decided to lower the flaps and landing gear. The flaps were extended to 15 degrees; however the landing gear would not extend. They informed ATC of situation, and were placed in a box pattern east of Orlando International Airport. They performed the abnormal emergency landing gear instructions in the checklist and contacted the Comair maintenance facility for further instructions. Repeated attempts to lower the landing gear were unsuccessful, and a gear up landing was performed.

Probable Cause:

The aircraft manufacture's inadequate written procedures in the airplane flight manual/quick reference handbook, which resulted in a failure of the landing gear to extend and a wheels up emergency landing, due to hydraulic blockage in the landing gear solenoid valve. Factors relating to the accident were: the chafed and ruptured hydraulic line and the subsequent hydraulic leak, which resulted in loss of hydraulic pressure and an inoperative normal landing gear extension system.

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 284 days (9 months)
Accident number: MIA96FA162
Download report: Final report


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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 Nassau International Airport et Orlando International Airport, FL est de 533 km (333 miles).

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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