maddmaxx ★ Posted October 1, 2017 Share #1 Posted October 1, 2017 Air France had an emergency landing at a small field in Canada this weekend. This is what the passengers saw No Fan A "spot of damage" to the pylon And this is what they should have seen This is about as bad as it gets in the jet engine business. Scary stuff. There's been a lot of this crap going on lately. Link to comment Share on other sites More sharing options...
The_Karen_Cooper_Incident Posted October 1, 2017 Share #2 Posted October 1, 2017 Something similar happened to an A380 a few years ago. I believe it was Australia. It's a testament to the safety of modern jetliners I suppose. Thank Chemical Chance, nothing happened to the passengers. DK Link to comment Share on other sites More sharing options...
maddmaxx ★ Posted October 1, 2017 Author Share #3 Posted October 1, 2017 It is considered a cardinal sin in the jet engine business to allow parts to exit out of a broken engine in any direction but aft. Having a fan hub depart from the inner shaft with the associated spinning 10+ ft diameter fan is really bad. An event like that is relying a lot more on luck than safety. Link to comment Share on other sites More sharing options...
The_Karen_Cooper_Incident Posted October 1, 2017 Share #4 Posted October 1, 2017 1 minute ago, maddmaxx said: It is considered a cardinal sin in the jet engine business to allow parts to exit out of a broken engine in any direction but aft. Having a fan hub depart from the inner shaft with the associated spinning 10+ ft diameter fan is really bad. An event like that is relying a lot more on luck than safety. The flight in Australia sent parts through the left wing. The jet flew just fine. Everyone still survived. While a rational person might agree with you, my namesake has an image to uphold. DK Link to comment Share on other sites More sharing options...
maddmaxx ★ Posted October 2, 2017 Author Share #5 Posted October 2, 2017 1 hour ago, Dunning Kruger said: The flight in Australia sent parts through the left wing. The jet flew just fine. Everyone still survived. While a rational person might agree with you, my namesake has an image to uphold. DK Non seatbelt wearing people sometimes get thrown from the wreck and survive too. Link to comment Share on other sites More sharing options...
Zealot Posted October 2, 2017 Share #6 Posted October 2, 2017 Ouch. What caused it? Link to comment Share on other sites More sharing options...
Popular Post 2Far ★ Posted October 2, 2017 Popular Post Share #7 Posted October 2, 2017 1 hour ago, Zealot said: Ouch. What caused it? Miscalibrated spoke wrench. 5 1 Link to comment Share on other sites More sharing options...
maddmaxx ★ Posted October 2, 2017 Author Share #8 Posted October 2, 2017 7 hours ago, Zealot said: Ouch. What caused it? The initial report was "probably a cracked fan blade causing a failed blade. That can create all sorts of trouble from a failed hub or shaft due to unbalanced stress or a fan case so badly damaged that the engine swallows most of it killing the rest of the fan and hub and shaft on the way. Notice that there is nothing left in front of the compressor section. That's a lot of fast moving parts that got out of the engine. Thankfully no insurmountable structural damage or parts flying through the sections occupied by flesh and blood. Link to comment Share on other sites More sharing options...
Scrapr ★ Posted October 2, 2017 Share #9 Posted October 2, 2017 I hope to all that is good and just that WoScrapr does not see this. We are debating going back to Paris early next year. She is already spooked about terrorism. Air France is one of the lower costs flights I am tracking Link to comment Share on other sites More sharing options...
Wilbur ★ Posted October 2, 2017 Share #10 Posted October 2, 2017 3 minutes ago, Scrapr said: I hope to all that is good and just that WoScrapr does not see this. We are debating going back to Paris early next year. She is already spooked about terrorism. Air France is one of the lower costs flights I am tracking Try Wow airlines. Don’t know how difficult that is but it is a well run low cost carrier based in Iceland. All flights connect in Keflavik but their pricing is pretty darn good. 1 Link to comment Share on other sites More sharing options...
Wilbur ★ Posted October 2, 2017 Share #11 Posted October 2, 2017 2 hours ago, maddmaxx said: The initial report was "probably a cracked fan blade causing a failed blade. That can create all sorts of trouble from a failed hub or shaft due to unbalanced stress or a fan case so badly damaged that the engine swallows most of it killing the rest of the fan and hub and shaft on the way. Notice that there is nothing left in front of the compressor section. That's a lot of fast moving parts that got out of the engine. Thankfully no insurmountable structural damage or parts flying through the sections occupied by flesh and blood. Looks like the containment ring did it’s job before it left. 2 Link to comment Share on other sites More sharing options...
tybeegb Posted October 2, 2017 Share #12 Posted October 2, 2017 It's the ethanol. They forgot to put the stabilizer in with the last fill-up. Then again if could have been the TIT was running just a little high and they weren't watching the fuel flow? Wilbur, do they put foam in the fuel tanks on those things? 1 Link to comment Share on other sites More sharing options...
Wilbur ★ Posted October 2, 2017 Share #13 Posted October 2, 2017 6 minutes ago, tybeegb said: It's the ethanol. They forgot to put the stabilizer in with the last fill-up. Then again if could have been the TIT was running just a little high and they weren't watching the fuel flow? Wilbur, do they put foam in the fuel tanks on those things? No foam. Link to comment Share on other sites More sharing options...
Johnny Come Lately Name Posted October 2, 2017 Share #14 Posted October 2, 2017 3 hours ago, maddmaxx said: cracked fan blade causing a failed blade. Told you my former cow-orkers were a bunch of idiots. 1 Link to comment Share on other sites More sharing options...
maddmaxx ★ Posted October 2, 2017 Author Share #15 Posted October 2, 2017 Since this has happened a bit more than usual lately (not quite this bad) I have to begin wondering who is skimping on maintenance inspections and who is making too many inflated promises about cycles before overhaul. Link to comment Share on other sites More sharing options...
The_Karen_Cooper_Incident Posted October 2, 2017 Share #16 Posted October 2, 2017 2 hours ago, Wilbur said: Try Wow airlines. Don’t know how difficult that is but it is a well run low cost carrier based in Iceland. All flights connect in Keflavik but their pricing is pretty darn good. Yea. And they make sure their fan blades are defective. Unlike their French counterparts. DK Link to comment Share on other sites More sharing options...
jsharr ★ Posted October 2, 2017 Share #17 Posted October 2, 2017 11 hours ago, 2Far said: Miscalibrated spoke pedal wrench. FIFY 1 Link to comment Share on other sites More sharing options...
Kirby Posted October 2, 2017 Share #18 Posted October 2, 2017 At least it wasn't a gremlin. 1 Link to comment Share on other sites More sharing options...
Zealot Posted October 2, 2017 Share #19 Posted October 2, 2017 15 hours ago, maddmaxx said: The initial report was "probably a cracked fan blade causing a failed blade. That can create all sorts of trouble from a failed hub or shaft due to unbalanced stress or a fan case so badly damaged that the engine swallows most of it killing the rest of the fan and hub and shaft on the way. Notice that there is nothing left in front of the compressor section. That's a lot of fast moving parts that got out of the engine. Thankfully no insurmountable structural damage or parts flying through the sections occupied by flesh and blood. I've seen, and repaired the damage caused by failure in high velocity fans (hvac and evac systems). Can't imagine how truly fortunate those on that plane were! Link to comment Share on other sites More sharing options...
maddmaxx ★ Posted October 3, 2017 Author Share #20 Posted October 3, 2017 27 minutes ago, Zealot said: I've seen, and repaired the damage caused by failure in high velocity fans (hvac and evac systems). Can't imagine how truly fortunate those on that plane were! Wilbur was correct. There is a containment ring built into the intake of the engine around the fan. It's gone but it must have absorbed most of the energy released Link to comment Share on other sites More sharing options...
Thaddeus Kosciuszko Posted October 3, 2017 Share #21 Posted October 3, 2017 That must have been a rather substantial drag! It must have take the pilots quite a bit of work to get the plane to fly straight after that happened especially since they couldn't feather the prop. Link to comment Share on other sites More sharing options...
Wilbur ★ Posted October 3, 2017 Share #22 Posted October 3, 2017 54 minutes ago, Thaddeus Kosciuszko said: That must have been a rather substantial drag! It must have take the pilots quite a bit of work to get the plane to fly straight after that happened especially since they couldn't feather the prop. Not as much as you would think. Link to comment Share on other sites More sharing options...
maddmaxx ★ Posted October 3, 2017 Author Share #23 Posted October 3, 2017 I wonder how the pilots felt, landing at a field so small that the passengers had to be taken out by 2 aircraft. Link to comment Share on other sites More sharing options...
Square Wheels Posted October 3, 2017 Share #24 Posted October 3, 2017 Hopefully they were over an uninhabited area when those pieces came crashing down. Link to comment Share on other sites More sharing options...
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