Accident
Last updated: 21 May 2013
| Statuts: | Enquête Officielle |
| Date: | 19 MAR 2001 |
| Heure: | 18:30 EST |
| Type/Sous-type: | Embraer 120RT Brasilia |
| Opérant pour: | Delta Connection |
| Loué à : | Comair |
| Immatriculation: | N266CA |
| Numéro de série: | 120258 |
| Année de Fabrication: | 1992 |
| Heures de vol: | 22154 |
| Moteurs: | 2 Pratt & Whitney Canada PW118 |
| Equipage: | victimes: 0 / à bord: 2 |
| Passagers: | victimes: 0 / à bord: 25 |
| Total: | victimes: 0 / à bord: 27 |
| Dégats de l'appareil: | Substantiels |
| Conséquences: | Repaired |
| Lieu de l'accident: | près de West Palm Beach, FL (Etats-Unis d'Amérique) |
| Phase de vol: | En vol (ENR) |
| Nature: | Transport de Passagers Intern. |
| Aéroport de départ: | Nassau International Airport (NAS/MYNN), Bahamas |
| Orlando International Airport, FL (MCO/KMCO), Etats-Unis d'Amérique | |
| Numéro de vol: | 5054 |
The aircraft was 46 minutes into a scheduled flight from Nassau, Bahamas, to Orlando, Florida. The airplane was being controlled by the autopilot at about 18,000 feet when they encountered instrument meteorological conditions that rapidly led to the windscreen being covered by a layer of ice. The crew turned ice protection systems on and the ice on the windshield was cleared. The first officer observed ice on the right wing's boots and the right prop's spinner that extended farther back than he had previously experienced. The first officer then switched the ice protection systems to their highest settings. De airspeed then descreased from 1750 to 160kts.The captain disconnected the autopilot, applied power, and initiated nose down pitch inputs to arrest the airspeed loss. They indicated that these actions were unsuccessful and the speed further deteriorated to about 130 knots at which point the airplane rolled about 90 degrees to the left, and then back to near level. In the next 24 seconds, the airplane again rolled about 110 degrees to the left, back to level, then about 120 degrees to the right, back to level, and then rolled 360 degrees to the right, back to near wings level. Since the crew reported trouble with the flight attitude instruments, the roll angles recorded on the FDR are being further investigated. The maximum nose down pitch attitude was 60 degrees, the maximum recorded airspeed was about 240 kias, and maximum vertical acceleration during recovery was about +3.6 g. The crew immediately diverted to West Palm Beach and landed there 12 minutes after the upset.
PROBABLE CAUSE: "The failure of the flight crew to maintain airspeed during an encounter with severe icing conditions, which resulted in an inadvertent stall, loss of control, and structural damage to the airplane." Sources:
» ALPA Submission to the NTSB on Comair Flight 5054
Opérations de secours
NTSB issued 2 Safety Recommendations
Show all AD's and Safety Recommendations
Show all AD's and Safety Recommendations
Photos
Fractured stabilizer rib just under the counter balance
Plan
Ce plan montre l'aéroport de départ ainsi que la supposé 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).
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 tels qui sont connus à ce jour.
