Accident Canadair CL-600-2B19 Regional Jet CRJ-200LR N17337,
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Date:Thursday 25 January 2007
Type:Silhouette image of generic CRJ2 model; specific model in this crash may look slightly different    
Canadair CL-600-2B19 Regional Jet CRJ-200LR
Owner/operator:America West Express
Registration: N17337
MSN: 7337
Year of manufacture:1999
Total airframe hrs:19629 hours
Cycles:15438 flights
Engine model:General Electric CF34-3B1
Fatalities:Fatalities: 0 / Occupants: 54
Aircraft damage: Minor, repaired
Location:near Woodland Park, CO -   United States of America
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Denver International Airport, CO (DEN/KDEN)
Destination airport:Phoenix-Sky Harbor International Airport, AZ (PHX/KPHX)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
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: "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:
Investigating agency: NTSB
Report number: DEN07IA055
Status: Investigation completed
Duration: 1 year
Download report: Final report



Revision history:


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