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Thrust Reverser Problems With GE90's?  
User currently offline747Dreamlifter From , joined Dec 1969, posts, RR:
Posted (6 years 4 months 2 weeks 6 days 20 hours ago) and read 3879 times:

Registration 9V-SWL is the newest triple-7 received by SQ on 26 Oct 2007. Looking at the picture posted on 16 Nov, I noticed that the reverser cowling on right GE90 is of a different color indicating a possible replacement. Is there a problem with the thrust reverser units on this high output engine.???

Just wondering since this aircraft is only a month old. Thanks.


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5 replies: All unread, jump to last
 
User currently offlineFlipdewaf From United Kingdom, joined Jul 2006, 1542 posts, RR: 1
Reply 1, posted (6 years 4 months 2 weeks 6 days 20 hours ago) and read 3872 times:
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Components are more likely to fail at the start and the end of their service life (the bathtub model) so its not too shocking, could always be a case of ramp rash.

Fred


User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 2, posted (6 years 4 months 2 weeks 6 days 15 hours ago) and read 3805 times:



Quoting 747Dreamlifter (Thread starter):
Registration 9V-SWL is the newest triple-7 received by SQ on 26 Oct 2007. Looking at the picture posted on 16 Nov, I noticed that the reverser cowling on right GE90 is of a different color indicating a possible replacement. Is there a problem with the thrust reverser units on this high output engine.???

Not any more so than any other aircraft I'm aware of. T/R's are finicky on a good day. Ramp rash is always an option for T/R's (they get hit a lot). It's also possible that they robbed a T/R off this aircraft when it was still in post-delivery check to serve an AOG line aircraft.

Spare T/R's are also really expensive, so they may have swapped the "mint" T/R from the delivery aircraft with an older one in spares so that their spare would be a low hours unit. This type of swap is fairly common with engines and tires as well.

Tom.


User currently offlineFr8mech From United States of America, joined Sep 2005, 5098 posts, RR: 12
Reply 3, posted (6 years 4 months 2 weeks 6 days 14 hours ago) and read 3784 times:

I don't know anything about the GE90, but I do know reversers. A reverser half or translating sleeve change is usually a result of damage from some external source. Rarely do the structural components fail to the point where the half must be replaced.


When seconds count...the police are minutes away. Never leave your cave without your club.
User currently offlineHAWK21M From India, joined Jan 2001, 31568 posts, RR: 57
Reply 4, posted (6 years 4 months 2 weeks 6 days 10 hours ago) and read 3728 times:

It looks like the C duct was replaced.
Could be mechanically related or Damage sustained on line.
regds
MEL



Think of the brighter side!
User currently offlineBR715-A1-30 From , joined Dec 1969, posts, RR:
Reply 5, posted (6 years 4 months 2 weeks 3 days 12 hours ago) and read 3462 times:

Or like some other cases, it could have just been a case of "correct color not available"

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