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Status: Accident investigation report completed and information captured
Datum:maandag 19 maart 2001
Tijd:18:30
Type:Silhouette image of generic E120 model; specific model in this crash may look slightly different
Embraer EMB-120RT Brasilia
Luchtvaartmaatschappij:Comair/Delta Connection
Registratie: N266CA
Constructienummer: 120258
Bouwjaar: 1992
Aantal vlieguren:22154
Motoren: 2 Pratt & Whitney Canada PW118
Bemanning:slachtoffers: 0 / inzittenden: 2
Passagiers:slachtoffers: 0 / inzittenden: 25
Totaal:slachtoffers: 0 / inzittenden: 27
Schade: Groot
Gevolgen: Repaired
Plaats:nabij West Palm Beach, FL (   Verenigde Staten)
Fase: Kruisvlucht (ENR)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Nassau International Airport (NAS/MYNN), Bahamas
Vliegveld van aankomst:Orlando International Airport, FL (MCO/KMCO), Verenigde Staten
Vluchtnummer:5054
Beschrijving:
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 decreased from 1750 to 160 kts. 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:

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."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 9 months
Accident number: DCA01MA031
Download report: Summary report
Language: English

Bronnen:
» ALPA Submission to the NTSB on Comair Flight 5054


Veiligheidsmaatregelen

NTSB issued 2 Safety Recommendations

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Foto's

photo of Embraer-120RT-Brasilia-N266CA
accident date: 19-03-2001
type: Embraer 120RT Brasilia
registration: N266CA
 

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 Nassau International Airport en Orlando International Airport, FL bedraagt 533 km (333 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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