What happened with VH-OJE/QF5 yesterday?
Bernard Smith
news:gbeL8.4982$3t6.2...@ozemail.com.au...
> Anyone catch what was up with VH-OJE/QF5 yesterday. It
> taxied for RWY34L in Sydney, stopped about 1Km from
> the end on taxiway alpha, and sat there for about 20
> mins before proceeding to what seemed to be a perfectly
> normal departure.
Reported on the Sydney Airport Message Board as having an electronics
problem which righted itself just as the aircraft was about to return
to the terminal.
http://216.71.110.191/cgi-bin/yssy/msgboard/UltraBoard.pl?Action=ShowP
ost&Board=Sydney_Airport&Post=6674&Idle=7&Sort=0&Order=Descend&Page=0&
Session=
Thegoons
re window heating system. After many recycles of the breakers and system
resets the error message finally disappeared. Fortunate it wasn't too busy
at the time.
JB
"Thegoons" <Theg...@bigpond.com> wrote in message
news:3CFF6D7B...@bigpond.com...
> Yes, monitored 131.7MHz discussions with QF ENG - error messages displayed
> re window heating system. After many recycles of the breakers and system
> resets the error message finally disappeared. Fortunate it wasn't too busy
> at the time.
>
Oh, and how do you know that there were "many recycles of the breakers". I'm
sure they didn't count them out over the radio.
JB
Stealth Pilot
"many recycles" doesnt seem to accord with standard aviation practise.
wonder how much kero it evaporated?
Stealth Pilot
JB
"Stealth Pilot" <tail...@ieyenetdotnetdotau.spurious> wrote in message
> >Oh, and how do you know that there were "many recycles of the breakers".
I'm
> >sure they didn't count them out over the radio.
> >
> >JB
> >
> "many recycles" doesnt seem to accord with standard aviation practise.
> wonder how much kero it evaporated?
> Stealth Pilot
It definately isn't, and it also isn't how they would reset the window heat
system anyway.
JB
Wee Duncan
> "many recycles" doesnt seem to accord with standard aviation practise.
Very agricultural - doesn't sound like Qantas subscribes to the well
tested "Problems that go away by themselves usually come back by
themselves" theory. :-(
Andrew Puddifer
tape it on anyway! :)
Regards, Andrew.
JB
"Wee Duncan" <duncan...@hotmail.com> wrote in message
news:a2654ca.02061...@posting.google.com...
> tail...@ieyenetdotnetdotau.spurious (Stealth Pilot) wrote in message
news:<3d03593a...@news.m.iinet.net.au>...
> > "many recycles" doesnt seem to accord with standard aviation practise.
As I said earlier in the piece, the breakers would not have been reset. The
window heat system is reset by turning the 4 individual switches off,
waiting at least 10 seconds, and then turning them back on again.
>
> Very agricultural - doesn't sound like Qantas subscribes to the well
> tested "Problems that go away by themselves usually come back by
> themselves" theory. :-(
Sounds like you have never had anything to do with EICAS....
JB
JMac
> I think the symptom was a fault with the window heaters, but it was some
other
> type of display screen that was showing various errors. On 131.7MHz they
> mentioned they had reset the breakers. However, this may have been the
pilot's
> loose terminology usage for the switches.
There is a subtle difference between 'cycling' circuit breakers and
'resetting' breakers.
Some systems don't have on/off switches...so the only way off
removing/restoring power
is to cycle the breakers!