Hamish Posted February 21, 2021 Report Share Posted February 21, 2021 Now this would be bl@@dy scary https://news.sky.com/video/share-12224461 Quote Link to post Share on other sites
RobH Posted February 21, 2021 Report Share Posted February 21, 2021 (edited) Good discussion here from professional pilots: https://www.pprune.org/rumours-news/638797-united-b777-uncontained-engine-failure-4.html The pilots seem to be quite calm about it - the air traffic controller sounds more rattled: Strangely there was a similar incident on the same day at Maastricht involving a 747. Debris injured some people on the ground and damaged cars. Edited February 21, 2021 by RobH Quote Link to post Share on other sites
Deggers Posted February 21, 2021 Report Share Posted February 21, 2021 Good engineering, bad maintenance? Takes a lickin', keeps on tickin'. Deggers Quote Link to post Share on other sites
RogerH Posted February 21, 2021 Report Share Posted February 21, 2021 That is impressive. Possibly had an engine surge and the pressure build up took the cowlings off. I would suggest that it did not 'keep on ticking' but was running down very slowly with all that wind blowing in the front end. Bad maintenance - is that a fact!. Roger Quote Link to post Share on other sites
Colin Symonds Posted February 21, 2021 Report Share Posted February 21, 2021 The 777 is my least favourite plane, the engine noise in the cabin, even when it doesn't catch fire, is very intrusive especially for overnight flights when trying to get a bit of sleep. Give my a 380 any day or at a pinch a 787. Quote Link to post Share on other sites
john.r.davies Posted February 21, 2021 Report Share Posted February 21, 2021 Well, what do expect? Pratt & Whitney engine! That'll teach United not to specify RR power units! (Ducks and runs for cover) Quote Link to post Share on other sites
North London Mike Posted February 21, 2021 Report Share Posted February 21, 2021 2 hours ago, RobH said: Good discussion here from professional pilots: https://www.pprune.org/rumours-news/638797-united-b777-uncontained-engine-failure-4.html The pilots seem to be quite calm about it - the air traffic controller sounds more rattled: Strangely there was a similar incident on the same day at Maastricht involving a 747. Debris injured some people on the ground and damaged cars. Air traffic Vs Pilots: Don't the pilots train all the time for loss of one engine, designed to fly very well on only one. Still, I'm sure we'd rather have both !! Quote Link to post Share on other sites
JohnG Posted February 21, 2021 Report Share Posted February 21, 2021 1 hour ago, Colin Symonds said: The 777 is my least favourite plane, the engine noise in the cabin, even when it doesn't catch fire, is very intrusive especially for overnight flights when trying to get a bit of sleep. Give my a 380 any day or at a pinch a 787. 747 every time, top deck, 22 seats 3 cabin rew . . .a decent ratio A380 is too big with too few cabin crew Yep, as you say, 787 at a pinch Quote Link to post Share on other sites
JohnG Posted February 21, 2021 Report Share Posted February 21, 2021 40 minutes ago, john.r.davies said: Well, what do expect? Pratt & Whitney engine! That'll teach United not to specify RR power units! (Ducks and runs for cover) Why? You make a statement of fact, there's no need to hid. Quote Link to post Share on other sites
RogerH Posted February 21, 2021 Report Share Posted February 21, 2021 1 hour ago, john.r.davies said: Well, what do expect? Pratt & Whitney engine! That'll teach United not to specify RR power units! (Ducks and runs for cover) Hi John, P&W engines have had their problems but overall are pretty good. RR have had their problems also but as they are British so they must be better The 777 is a good aircraft. BA showed that it can fly on fumes so that must be good for the environment. The A380 is a coffin with wings. It failed virtually all of its tensile testing on the whopping great test rigs. This has resulted in a possibly shorter life. As for forgiving aircraft the B747 is tops. Things can break, drop off and look terrifying but it tends to struggle back home. I prefer the Viscount 800 series. Roger (I've seen inside them !!) Quote Link to post Share on other sites
ntc Posted February 21, 2021 Report Share Posted February 21, 2021 If both fail your going down like a dart Quote Link to post Share on other sites
RogerH Posted February 21, 2021 Report Share Posted February 21, 2021 9 minutes ago, ntc said: If both fail your going down like a dart Hi Neil, not quite a dart but more like an arrow. From about 30,000ft a decent modern airliner should be able to glide about 100 mile (ish) with favourable conditions. The space shuttle did a bit more. Roger Quote Link to post Share on other sites
ntc Posted February 21, 2021 Report Share Posted February 21, 2021 Roger I will give that a miss trying my flying days are over and to be honest glad won’t miss being ripped off from parking and then treated like sheep checking in Quote Link to post Share on other sites
foster461 Posted February 21, 2021 Report Share Posted February 21, 2021 I would be worried about the heat from the engine fire melting the alu wing or igniting the fuel in the wing tanks. Captain Kirk would have ejected the starboard nacelle. Quote Link to post Share on other sites
RogerH Posted February 21, 2021 Report Share Posted February 21, 2021 1 minute ago, foster461 said: I would be worried about the heat from the engine fire melting the alu wing or igniting the fuel in the wing tanks. Captain Kirk would have ejected the starboard nacelle. The airflow would easily keep the temp down. There are no flames shooting out the back as per a serious engine fire. I would be more concerned about the out of balance engine wobbling on the pylon. Roger Quote Link to post Share on other sites
Motorsport Mickey Posted February 21, 2021 Report Share Posted February 21, 2021 Neil, From 30,000 feet you can glide a Grand piano in, the trade off between height x speed gives a lot of distance. If you lose wings ...well that's a different story. Mick Richards Quote Link to post Share on other sites
Motorsport Mickey Posted February 21, 2021 Report Share Posted February 21, 2021 Here you go Neil...take heart... In 2001 a plane carrying 293 passengers and 13 crew lost power in both its engines over the middle of the Atlantic Ocean. Unbeknown to the pilots of Air Transat Flight 236, the aircraft bound for Lisbon had been leaking fuel ever since it left Toronto six hours earlier. Having lost the first of two engines, Captain Robert Piche declared a fuel emergency and announced to Air Traffic Control his intention to divert to the Azores. Ten minutes later the second engine sputtered to a stop. Piche and his first officer, Dirk DeJager, with more than 20,000 hours of flight experience between them, proceeded to glide the Airbus A330, without any power, for 19 minutes – covering some 75 miles – until landing hard at Lajes Air Base. The plane, which was forced to perform a series of turns and one full circle to lose the necessary altitude, bounced on the runway before coming to a stop. No lives were lost and the incident remains the furthest flown by a passenger jet without engine power in aviation history. Mick Richards Quote Link to post Share on other sites
foster461 Posted February 22, 2021 Report Share Posted February 22, 2021 This bit of the failed engine was made by Lucas Quote Link to post Share on other sites
Ian Vincent Posted February 22, 2021 Report Share Posted February 22, 2021 I had a similar experience (an engine blowing up just after take off) back in the late 70s. The difference was, we were in. 747 and with very little drama it circled to dump fuel and the landed back at Singapore. Rgds Ian Quote Link to post Share on other sites
RogerH Posted February 22, 2021 Report Share Posted February 22, 2021 (edited) Usually a failed engine is not a great problem as the remaining engines have sufficient power to fly Engine fires look very scary but are usually brought under control. However when it goes wrong it turns very quickly into a disaster. On the 8th April 1968 a BOAC B707 had an engine failure ion take-off. This created a serious fire. Very soon the engine actually fell off. Upon landing the wing area continued to burn and very quickly got out of control. Chaos on the flight deck and in the cabin ended up with a number of people dying including a hostess who went back into the cabin to help rescue a passenger. She was awarded the GM for bravery. In this case there were serious blunders in every part of the disaster including those on the ground. https://en.wikipedia.org/wiki/BOAC_Flight_712 Roger PS - the BMI Kegworth crash was an engine fire that went wrong - they shut down the wrong engine. The French Concorde crash was helped on its way when the flight engineer shut down #2 engine even though it was running perfectly. The aircraft was overweight and need every pound of thrust - even when working properly. Edited February 22, 2021 by RogerH Quote Link to post Share on other sites
john.r.davies Posted February 22, 2021 Report Share Posted February 22, 2021 10 hours ago, foster461 said: This bit of the failed engine was made by Lucas Indeed! And "Origin UK", but a TY1904-02 Control Unit is from the Thrust Reverser mechanism, not the engine itself. At least, as it is designated as an "Actuator Assy T R PDA" I assume that is what the T R stands for. "PDA" can mean "Parts Departed Aircraft", which however ironic in this case cannot have been intended for "Bits That Fell Off". No doubt Roger can inform us! Quote Link to post Share on other sites
RogerH Posted February 22, 2021 Report Share Posted February 22, 2021 Hi John, don't know much about engine components but Lucas are a big company in this arena. As you point out it is for the thrust reverser. This could be bad news - a LaudaAir 767 deployed one reverser at altitude and crashed a few years back. However having looked for the number I came across this TY1904-50 Goodrich Actuation Systems Fan Cowl Actuator. Now if this had a hissy fit then it may be that the airbleed for the big fan on the front shut off and caused a surge (too much air trying to get in). It doesn't usually take the cowling off. Roger Quote Link to post Share on other sites
Mick Forey Posted February 22, 2021 Report Share Posted February 22, 2021 Initial report from the NTSB is focused on a fan blade failure, similar to two previous incidents. All PW400-112 powered B777 aircraft are now grounded pending further investigation and inspections. I learned very early on in my career in aviation to never gloat at issues experienced by your competitors as what goes around comes around. Aviation is still the safest form of transportation by far per passenger-mile. It is also well recognised that over 90% of fatalities in aviation are caused by human error, one way or another. We are the weakest link. Mick Quote Link to post Share on other sites
RogerH Posted February 22, 2021 Report Share Posted February 22, 2021 43 minutes ago, Mick Forey said: Initial report from the NTSB is focused on a fan blade failure, similar to two previous incidents. All PW400-112 powered B777 aircraft are now grounded pending further investigation and inspections. I learned very early on in my career in aviation to never gloat at issues experienced by your competitors as what goes around comes around. Aviation is still the safest form of transportation by far per passenger-mile. It is also well recognised that over 90% of fatalities in aviation are caused by human error, one way or another. We are the weakest link. Mick A fan blade failure ( the front rotating section) would give that shaking of the engine that can be seen. Having a fan blade trying to go through the engine causes a great deal of damage - hence the fire etc Roger Quote Link to post Share on other sites
Deggers Posted February 22, 2021 Report Share Posted February 22, 2021 Quote Link to post Share on other sites
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