Germany CJ Engine Issue Options

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I was sent these pictures and not sure what happened. I wanted to see if anyone had any news on this.

Regards,

Mike

WOW!

Massive fire there. What model CJ is it?

Since it does not have thrust augmentors it would have to be a CJ 3 or 4.

Or a CJ1+ (or 2+) like I fly.
If anyone knows what happened here, PLEASE let us know. Judging by the smoke streaks around the panels, it may have happened in flight, which is a little scary. Wind or taxiing could also have caused the streaks, but I'd still love to know the story.

PS: they're thrust attenuators on the earlier CJ's, which were not "needed" on the CJ3, 1+ and 2+ because the FADECs allow lower idle thrust. Thrust augmenters could get exciting if used while trying to stop! Personally, I think all twin jets should have thrust reversers, but that's just me. (Ever land on black ice with no forewarning?)

There was an article in AIN (Aviation International News) about a JC2 and a left engine fire. Not much information was in the article unfortunately.

Its going around as and email saying it was volcanic ash

It does not seem possible since the pictures were posted almost 4 weeks before the volcano eruption. It looks like something ruptured the diffuser case or the diffuser case ruptured and took something else out with it.

From AINmx Report
Engine Damage Not Caused by Volcanic Ash
Dramatic photos circulating on the Internet purporting to show a Williams International FJ44-3A-24 installed on a Cessna Citation CJ2+ destroyed by exposure to volcanic ash from the recent eruption in Iceland are “complete fiction,” according to Brad Thress, Cessna vice president of product support. The incident occurred about a month before the April eruption, he said. “It’s viral,” Thress said. “We get hundreds of e-mails here…It’s interesting how things can take off on the Internet.” What caused the damage is a known issue with the engine’s diffuser, he said. Williams has already sent a letter to operators warning about the potential for the diffuser to fail. The failure mode is caused by a harmonic vibration that cracks the fuel manifold, and the engine company notified operators that signs of shifting or cracking of the diffuser include a shift in ITT, fuel odor in the cabin or difficulty removing the diffuser or start nozzle, according to Thress. Cessna is planning to release an alert service letter on this issue, and diffusers are being replaced during the next scheduled maintenance event. “It is a fleet issue,” he said, “not related to volcano activity.”

From AIN MX reports.

Engine Damage Not Caused by Volcanic Ash
Dramatic photos circulating on the Internet purporting to show a Williams International FJ44-3A-24 installed on a Cessna Citation CJ2+ destroyed by exposure to volcanic ash from the recent eruption in Iceland are “complete fiction,” according to Brad Thress, Cessna vice president of product support. The incident occurred about a month before the April eruption, he said. “It’s viral,” Thress said. “We get hundreds of e-mails here…It’s interesting how things can take off on the Internet.” What caused the damage is a known issue with the engine’s diffuser, he said. Williams has already sent a letter to operators warning about the potential for the diffuser to fail. The failure mode is caused by a harmonic vibration that cracks the fuel manifold, and the engine company notified operators that signs of shifting or cracking of the diffuser include a shift in ITT, fuel odor in the cabin or difficulty removing the diffuser or start nozzle, according to Thress. Cessna is planning to release an alert service letter on this issue, and diffusers are being replaced during the next scheduled maintenance event. “It is a fleet issue,” he said, “not related to volcano activity.”