alyusuph
Topic Author
Posts: 138
Joined: Mon Apr 14, 2008 9:38 am

What does 787 heavy maintenance checks tell us about the programme?

Tue Feb 12, 2019 6:57 am

It is more than seven years since the Boeing 787 entered service. The programme started with a few, if not major challenges, but so far the AC seems to be buffeting the headwinds very well, save for the deferred programme costs.Since the 787 is the first passenger AC to enter service with a significant amount of composites, and new technologies such as bleed-less systems etc, how do the few 787 which have already gone through heavy maintenance schedule show about the programme?. is the fuselage for instance promising to be be more durable and resilient from pressurization and depressurization as promised, corrosion, cracks etc? reliability of the AC in general across the board noticed through major checks?
I am not an Airbus or Boeing fan, just an aircraft fan
 
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seabosdca
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Joined: Sat Sep 01, 2007 8:33 am

Re: What does 787 heavy maintenance checks tell us about the programme?

Tue Feb 12, 2019 7:17 am

No 787 will undergo a D-check for about another 4 years. The interval is 12 years.
 
mmo
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Joined: Thu Apr 18, 2013 3:04 pm

Re: What does 787 heavy maintenance checks tell us about the programme?

Tue Feb 12, 2019 7:41 am

seabosdca wrote:
No 787 will undergo a D-check for about another 4 years. The interval is 12 years.


Not really true. Depending on the approved maintenance program of the specific carrier, they can do phased checks which spread out the process over years, doing part of the check every 24 months or so. Allows for easier scheduling and budgeting of the process.

Have not heard of any big surprises in any of the 787 checks.
If we weren't all crazy we'd all go insane!
 
Chaostheory
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Joined: Wed Mar 06, 2013 2:09 am

Re: What does 787 heavy maintenance checks tell us about the programme?

Wed Feb 13, 2019 9:53 pm

seabosdca wrote:
No 787 will undergo a D-check for about another 4 years. The interval is 12 years.


As a follow on from MMO's post, maintenance checks will depend on an airline's usage profile and what the regulators are willing to approve.

You will often find airlines bringing forward some checks before they're actually due in an effort to minimise overall downtime.

We did have a few issues with vfsg failures but overall reliability has been excellent with no nasty surprises thus far.

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