NTSB investigating first uncontained engine failure

[Mellyrose]

http://www.flightglobal.com/articles/20 ... lines.html <---click for photo.

The US National Transportation Safety Board (NTSB) is investigating an uncontained engine failure, the first of its kind, on a GE CF34-3B1-powered Bombardier CRJ200LR.

The incident occurred at 17:30 Thursday evening when a Mesa Airlines aircraft as flight 2985 from Denver, Colorado to Phoenix, Arizona shed a fan blade and the forward cowling from its left engine in cruise flight around 50nm (100km) out of Denver international airport, causing the crew to declare an emergency and return to Denver. Mesa Brian Gillman says no evacuation was necessary and the US Federal Aviation Administration reported that there were no injuries among the three crew and 50 passengers.

Engine manufacturer GE has sent three representatives to support the NTSB in its investigation, says a spokesman, who added that there are more than 2,000 of the “extremely reliable” engines in service since 1992. GE says failure is the first of its kind for the turbofan engine. Flight's fleet database ACAS shows that the aircraft, N17337, has not been damaged since it was delivered new to Mesa on 22 September 1999.

Bombardier declined from commenting on the incident, saying it would have to wait until the NTSB concludes its investigation.

[Matt Molnar]

Make sure you click the link, the photo of the remains of the engine is insane.

Extraordinarily lucky the fuselage and horizontal and vertical stabilizers were undamaged by the debris.

[USAF Pilot 07]

Whoa! Crazy picture.. Surprised some flying schrapnel didn't hit anything else or puncture the fuselage...

[hiss srq]

HOLY ****!!! That looks to me like maybe there was some serious fatiuge on the hub perhaps. Maybe a crack in the disc someplace? Whatever it was it did not JUST happen. That is some serious damage. Now the thing I am perplexed by is why it would take place in cruise if that is in fact where it took place when there is not sooo much of a load on the engines.