UA1175 emergency landing Honolulu
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UA1175 emergency landing Honolulu
Can't find pictures on the news yet, just this Twitter video from the B777 as it heads back squawking 7700:
What happened to the engine? Doesn't look like a smooth ride for the pax.
What happened to the engine? Doesn't look like a smooth ride for the pax.
Last edited by PaxBritannica; 14th Feb 2018 at 17:09.
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Landed without further incident at HNL. Firefighting equipment and personnel standing by upon landing at pilot's request.
Apparently fitted with a pair of Pratts and looks like this aircraft could be one of the airline's oldest triple sevens.
Apparently fitted with a pair of Pratts and looks like this aircraft could be one of the airline's oldest triple sevens.
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So, speculating solely from the pix (and text) in the NYT article (link below), how much engine damage was done, was the engine shut down, what airframe risks did not occur, and was a safe landing in doubt?
https://www.nytimes.com/2018/02/13/u...ine-cover.html
https://www.nytimes.com/2018/02/13/u...ine-cover.html
Educated guess based on the damage and the passenger descriptions is a fan blade separation. That'll cause massive vibration - bad enough that it's been known to cause the inlet to depart...
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From the photos, I would say it is just a cowling failure including acoustic barrel. I don’t believe there is any damage or failure of blades. Kevlar shroud appears intact, if a bit tired and discoloured.
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Why would the Captain have chosen to call for a "Brace" landing?
Would it be standard procedure to send the F/O back to take a look?
I suppose these days you could just ask a flight attendant to take a few photos with their phone..
Would it be standard procedure to send the F/O back to take a look?
I suppose these days you could just ask a flight attendant to take a few photos with their phone..
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The cowls are secured by a number of latches. Given the sophistication of the systems to ensure cowls do not open and become detached in flight, what would have caused such an occurrence?
what would have caused such an occurrence?
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Towards the end of cruise, the NL will be well below red line so to lose the intake and fan cowl doors as well - presuming the fan blade loss was the primary failure - is unexpected. The reports give the impression that the intake was lost early on and not as a result of sustained out of balance during rundown/shutdown or windmill.
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The kevlar shroud is damaged on its starboard side (away from fuselage). There is interesting scoring on the inside of the intake duct. Would that be caused by fan movement caused by imbalance? Or indicate an object was caught between fan blade tips and the duct?
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Doesn't matter how old it is. Seems like we were sold "way back when" that all the extra care done for an ETOPS operation would keep this kind of stuff from happening. This wasn't just a loss of oil pressure.
