Narrative:

Climbing through 11;000 ft after departure; the right itt began to rise and flashed amber briefly and then went to red. Thrust was reduced and an audible bang followed by airframe vibration. All other indications were normal. I assumed control of the radios as well as aircraft while the captain began QRH procedures. After complying with the QRH; we declared an emergency and returned to the field. The vibration stopped prior to engine shutdown; so we elected to continue and land without an intentional shutdown. Overweight landing procedures were complied with and we landed without incident. Maintenance was unsure of this; but is obviously looking into possible N2 blade problems.

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Original NASA ASRS Text

Title: A CRJ200's engine displayed high ITT and after an audible bang began vibrating during climb. While completing the QRH procedure the vibration stopped. After declaring an emergency the aircraft was returned to the departure airport with the engine running.

Narrative: Climbing through 11;000 FT after departure; the right ITT began to rise and flashed amber briefly and then went to red. Thrust was reduced and an audible bang followed by airframe vibration. All other indications were normal. I assumed control of the radios as well as aircraft while the Captain began QRH procedures. After complying with the QRH; we declared an emergency and returned to the field. The vibration stopped prior to engine shutdown; so we elected to continue and land without an intentional shutdown. Overweight landing procedures were complied with and we landed without incident. Maintenance was unsure of this; but is obviously looking into possible N2 blade problems.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.