Boeing recommends 777s are grounded
Back to Forum- This topic has 8 replies, 6 voices, and was last updated 25 Feb 2021
at 12:40 by IanFromHKG.
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SimonS1ParticipantSo Boeing have recommended that 128 Boeing 777 airliners with Pratt & Whitney 4000-112 engines should be (or remain) grounded after yesterday’s events.
Quite a cautious approach from the manufacturer, compared to the previous gung ho approach on 737 Max.
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22 Feb 2021
at 13:26
Mark CaswellKeymaster22 Feb 2021
at 14:37
SimonS1ParticipantNo apologies needed…
At first glance I didn’t recall any history of such engine issues on 777s. A quick Google reminded of the BA one at Las Vegas (that was GE though), however it seems there was a similar issue in Dec 2020 on a PW engine at Japan Airlines.
23 Feb 2021
at 08:38
StevescootsParticipantFortunatley no loss of life or hardware and at least with everything grounded there will not be additional major impact in downtime> Although airlines trying to charge Boeing or PW for loss of revenue may find they need one hell of a lawyer!
23 Feb 2021
at 12:26
AnthonyDunnParticipantQuite spectacular TV film of what was left of the burning engine still on the wing after the uncontained explosion in the starboard engine. It would appear that one of the wide chord fans sheared off, owing to metal fatigue, taking another fan blade with it. Bearing in mind the size of some of the pieces of debris that fell to earth, it is a minor miracle that nobody was injured on the ground.
23 Feb 2021
at 20:11
IanFromHKGParticipantI’m astonished that all the manufacturer comments I have seen reported so far have been from Boeing, who don’t make the engine that blew apart, and it was Boeing who recommended grounding the aircraft. Not a word from Pratt & Whitney. Does anyone else think that’s strange?
Their website only seems to have two press releases, both extremely anodyne:
https://newsroom.prattwhitney.com/2021-2-21-Pratt-Whitney-Statement-on-United-Airlines-Flight-328
https://newsroom.prattwhitney.com/2020-02-23-Update-1-Pratt-Whitney-To-Inspect-PW4000-112-Fan-Blades-Prior-to-Return-to-Service25 Feb 2021
at 12:40 -
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