 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
endspeed(at)yahoo.com
Guest
|
 Posted: Mon Jun 12, 2006 7:35 pm Post subject: E-BUS |
 |
|
Hi Randy, I just reread your message about the
importance of the E-Bus. I agree 100%. It is
important. I went on to editorialize about the evils
of overdoing the E-Bus and I realize it was not a
valid response to the message you posted. Sorry about
that. I stand by the importance of keeping the E-Bus
limited to only items essential for endurance.
But that was a thought of my own separate from your
post. Safe flying, Bob Sultzbach
__________________________________________________
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
 |
brinker(at)cox-internet.c
Guest
|
| Posted: Tue Jun 13, 2006 8:36 am Post subject: E-BUS |
|
|
Bob there will be no flaming from me. I am sure you are much more
knowledgable than I on these matters. I only commented since it seems odd
there was no way for the pilot to go to a secondary dc power system and put
the essentials back on line. Also causing braking problems, which accually
looks like it was a bigger problem than loosing the efis. I would almost
wager that since this incidence there has been a change in the electrical
architechure. Also since this was back in 1996 I am almost certain that the
technology has advanced since then and also figure most airline pilots keep
a 396 or equivilent in their flight bag just in case these days. I am low
time pilot and have already had a vacuum pump go out on my 1968 cherokee
which put a sour taste in my mouth for steam gauges. It is interesting to
see the ideas and responses to redundancy. Opinions are like noses everybody
has one. My motto is "redundancy redundancy redundancy ohhhh my and more
redundancy" LOL. If ones loses the engine on a SEL all the gauges in the
world won't help. I am not making light of the situation but there has to be
a maximum point somewhere. Sorry for the rant.
Randy
---
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
endspeed(at)yahoo.com
Guest
|
| Posted: Tue Jun 13, 2006 12:19 pm Post subject: E-BUS |
|
|
Hi Randy,
I know about the circuit breaker situation on the
757/767 because of an experience I had luckily with
accepting an inbound aircraft. Everything was going
haywire and I looked for the circuit breakers on the
DC battery bus panel. Lo and behold, c/b's were
popped and some were bent. We replaced the c/b's and
all the problems went away. When you mess with a
767/757 by popping cb's and try to operate that way
God only knows what logic is going to get fouled up.
It is impressive to have all the bells, lights, and
whistles going off at once and not being able to make
them stop. I can't fault the crew of that 767 but
I'll bet the copilot snagged the cb's on the way in or
out of that seat and when they got on the ground the
popped breakers were reset. Problem solved and no one
the wiser at that.
__________________________________________________
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
khorton01(at)rogers.com
Guest
|
| Posted: Tue Jun 13, 2006 12:57 pm Post subject: E-BUS |
|
|
The NTSB report says that the ground cable for the main battery was
not positively secured to the main battery shunt. This may have been
a failure mode that was not considered by Boeing. But, the ground
testing could not duplicate the original failure, so there was
another variable that they couldn't track down.
I suspect many electrical systems would be put in a very bad state if
the main battery ground cable became disconnected. With my aircraft,
the whole electrical system would become unusable, and I'd be down to
the internal battery on my EFIS (advertised as 3 hr duration), plus
handheld COM and GPS. This should allow me to get on the ground
somewhere.
Kevin Horton
On 13 Jun 2006, at 12:30, Brinker wrote:
[quote]
internet.com>
Bob there will be no flaming from me. I am sure you are
much more knowledgable than I on these matters. I only commented
since it seems odd there was no way for the pilot to go to a
secondary dc power system and put the essentials back on line. Also
causing braking problems, which accually looks like it was a bigger
problem than loosing the efis. I would almost wager that since this
incidence there has been a change in the electrical architechure.
Also since this was back in 1996 I am almost certain that the
technology has advanced since then and also figure most airline
pilots keep a 396 or equivilent in their flight bag just in case
these days. I am low time pilot and have already had a vacuum pump
go out on my 1968 cherokee which put a sour taste in my mouth for
steam gauges. It is interesting to see the ideas and responses to
redundancy. Opinions are like noses everybody has one. My motto is
"redundancy redundancy redundancy ohhhh my and more redundancy"
LOL. If ones loses the engine on a SEL all the gauges in the world
won't help. I am not making light of the situation but there has to
be a maximum point somewhere. Sorry for the rant.
Randy
---
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
