AVSIG: Don't forget to reboot your 787 every 21 days! wwswsigarch.jpg (7236 bytes)

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John O'Shaughnessy [FCM]
Top Gun


Reged: 09/13/01
Posts: 5059
Loc: Minnesota
Don't forget to reboot your 787 every 21 days!
      #433501 - 12/12/16 06:16 PM

It seems preventive restarting of the 787 is now a recommended procedure...

http://www.avweb.com/avwebflash/news/Dreamliner-Reset-AD-Issued-228196-1.html


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Ward Miller POU-NY
Top Gun


Reged: 05/05/04
Posts: 10508
Loc: New York
Don't forget to reboot your 787 every 21 days! [Re: John O'Shaughnessy [FCM]]
      #433503 - 12/12/16 07:02 PM

>> ...preventive restarting of the 787...<<

John, the word "restarting" may not convey the full seriousness of the
recommendation. They are saying, in effect, "rebooting", unplugging it from
the wall.


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sreyoB yrraL
AVSIG Member


Reged: 05/16/04
Posts: 9442
Re: Don't forget to reboot your 787 every 21 days! [Re: John O'Shaughnessy [FCM]]
      #433506 - 12/12/16 07:35 PM

We reboot the wifi system on the 737 before each flight. If we don't, it will sometimes not sequence to the new flight and won't work until you do.

Turning it off and back on again still works well for most of the other systems, too.

Many of the widebodies fly all day and all night without powering down for many days (you'd think they'd get tired after a while). The 737s will do that some nights but any single airplane will likely spend the night on the ground somewhere at least every few days.

Of course, the 787 took the "all electric" mentality to new levels.


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Randy Sohn
Gradn Exlated Ordre of teh Fyling Fingres


Reged: 08/31/01
Posts: 23187
Loc: Savage, MN - U.S.A.
Re: Don't forget to reboot your 787 every 21 days! [Re: Ward Miller POU-NY]
      #433510 - 12/12/16 08:08 PM

Quote:

the word "restarting" may not convey the full seriousness




Yup, concur with yrraL about the heights of ridiculousness recently reached on computers but I can recall many moons ago having to return a DC-10 to the gate in SFO when we couldn't get it to work right. We "went dark" momentarily (I mean TOTALLY dark, batteries and EVERYTHING off) and then re-did the checklist, restarted and all was fine and onwards to MSP.

best, randy


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Terry Carraway
Top Gun


Reged: 06/02/04
Posts: 7098
Loc: Maryland
Re: Don't forget to reboot your 787 every 21 days! [Re: Randy Sohn]
      #433514 - 12/12/16 08:29 PM

I have been on a couple of flights that they had to do that. And one, where they did that, and it still did not work. Had a maintenance guy come on and wave his magic wand, and go dark, and then it worked.

Made me REALLY confident looking at a longish overwater flight onboard an airplane with software gremlins. :)

--------------------
Terry
Mostly 0W3


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Richard Duxbury (Dux)
Top Gun


Reged: 05/15/04
Posts: 5468
Loc: Minneapolis/Tucson
Re: Don't forget to reboot your 787 every 21 days! [Re: Randy Sohn]
      #433519 - 12/12/16 09:03 PM

Ya, I had a similar situation with the B-757 at Boston (circa 1990). Shut everything off and started from scratch (under the advise of Maintenance Control in Minneapolis).

Yep, everything worked just fine and we continued our flight -perhaps all the way to SFO.

Regards,

Dux from cold Minnesota


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Ray Tackett
Top Gun


Reged: 04/30/04
Posts: 8892
Loc: Philadelphia, USA
Don't forget to reboot your 787 every 21 days! [Re: John O'Shaughnessy [FCM]]
      #433520 - 12/12/16 09:05 PM

Reminds me of a Dilbert strip in which Dogbert is doing telephone tech
support:

Customer: Hello, I...

Dogbert: Shut up and reboot.

Customer: Hey, it wor...

Dogbert: Shut up and hang up.

Dogbert: My average call time is improving.

--------------------
Ray,

Owner, Lake Wood Be Gone

Turning quality lumber into sawdust and noise since 2013.


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Russell Holton
AVSIG Member


Reged: 07/07/05
Posts: 14136
Re: Don't forget to reboot your 787 every 21 days! [Re: John O'Shaughnessy [FCM]]
      #433521 - 12/12/16 09:09 PM

From the original link:
"If that had happened in flight, the results would have been at least interesting but it wasn’t likely."

From the AD: "This condition, if not corrected, could result in simultaneous resets of all three FCMs, which could result in flight control surfaces not moving in response to flight crew inputs for a short time and consequent temporary loss of controllability."

I'm curious why they didn't adopt a policy of rebooting more frequently on a rotating basis. That way, if a 21 day period was missed, they wouldn't all reboot at the same time.


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Randy Sohn
Gradn Exlated Ordre of teh Fyling Fingres


Reged: 08/31/01
Posts: 23187
Loc: Savage, MN - U.S.A.
Re: Don't forget to reboot your 787 every 21 days! [Re: Richard Duxbury (Dux)]
      #433522 - 12/12/16 09:31 PM

Quote:

Ya, I had a similar situation with the B-757 at Boston




Yup, that made me recall a chum of mine from Atlanta had it happen to a Delta 767 in Birmingham once also.

best, randy


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Bruce Gorrell [EQY]
Top Gun


Reged: 04/30/04
Posts: 7864
Loc: Charlotte, NC
Re: Don't forget to reboot your 787 every 21 days! [Re: Randy Sohn]
      #433541 - 12/13/16 03:41 AM

We had to do that on the Airbus every once in awhile.

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