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Last updated: 28 October 2020
Status:Definitief
Datum:donderdag 25 januari 2007
Tijd:16:50
Type:Silhouette image of generic CRJ2 model; specific model in this crash may look slightly different
Canadair CL-600-2B19 Regional Jet CRJ-200LR
Operated by:Mesa Airlines
On behalf of:America West Express
Registratie: N17337
Constructienummer: 7337
Bouwjaar: 1999
Aantal vlieguren:19629
Aantal vluchten:15438
Motoren: 2 General Electric CF34-3B1
Bemanning:slachtoffers: 0 / inzittenden: 4
Passagiers:slachtoffers: 0 / inzittenden: 50
Totaal:slachtoffers: 0 / inzittenden: 54
Schade: Licht
Gevolgen: Repaired
Plaats:nabij Woodland Park, CO (   Verenigde Staten)
Fase: Kruisvlucht (ENR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Denver International Airport, CO (DEN/KDEN), Verenigde Staten
Vliegveld van aankomst:Phoenix-Sky Harbor International Airport, AZ (PHX/KPHX), Verenigde Staten
Vluchtnummer:2985
Beschrijving:
While climbing through 24,000 feet, CRJ200's No. 1 engine experienced a fan disk separation, which resulted in the separation of the inlet, fan rotor assembly, the fan containment case, and portions of the thrust reverser.
The airplane's flight crew declared an emergency and immediately returned and landed uneventfully at the Denver International Airport at 17:30. The aircraft itself sustained minor damage to the fuselage, left engine pylon, and tail section during the engine separation.

Probable Cause:

PROBABLE CAUSE: "A fatigue fracture, which resulted in the separation of the No.1 engine fan disk. Contributing factors in the accident were the operators' maintenance personnel lack of training to be able to detect arc-out damage on the fan disk, and the fan disk manufacturer's inadequate electro-chemical etch match marking process of the fan disk to forward fan shaft that allowed for the initiation of a fatigue point that was undetected at the time of original manufacture."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year
Accident number: DEN07IA055
Download report: Summary report

Bronnen:
» NTSB


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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 Denver International Airport, CO en Phoenix-Sky Harbor International Airport, AZ bedraagt 962 km (601 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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