Engine 2 start problem

[bindook]

Hi Roberto,
i'm having a bit of trouble starting my N0.2 engine. I have followed the correct ( i hope) procedure with getting the engines ready for start. No1 has no problems but No.2 refuses to budge. I have gone thru all the lwr ecam pages & noticed on the bleed page that No.2 has no PSI reading & the temp is 20 deg(which i presume is OAT). While no1 has 33psi & 118deg.

Also (might be a PMsystem prob) when i start the elec no readings come up.

Hope you can help.

Thanks
Michael

[dodiano]

Hi Michael,

Have you asked Enricco cause I do not own PM´s aisbur software but if you have no PSI reading it is weird... Ok on the Lower ECAM when you press the Engine mode selector in Ignition it should turn automatically to the ENG page in the lower part you`ll see the PSI indication from the bleed coming from the APU to the engine it should be something around 24 to 30 Psi to be able to star... If you started number one you should be able to start number 2?? Can you send a pic?

Thanks.

Roberto

[bindook]

Roberto,
thanks, i thought i would try you first as i thought i missed something in the startup procedure. I will also ask Enrico. In the mean time i will try the startup again if no success then i will send a photo.




Michael

[Bob Reed]

Sounds to me like there is a valve not open if you have no bleed air to engine #2.

[Michael Carter]

Or the right pack is still on.

[dodiano]

On the Airbus that is automatic man... I mean the closing and openings of valves no need to be pressing switches so I don`t think is that maybe it could be something else I `ve never used Magenta so I don`t know. Oh and by the way on the bus Number 2 is started first that doesn`t really affect the other engine you can either start 1 and then 2 but 2 is first because the Yellow Hydraulic pump works with that engine and that presurizes the parking brake... Anyways it should start...

Regards,

Roberto

[Bob Reed]

It is automatic if the switches are already on!

[bindook]

Roberto,
might have found the problem but not how to solve it.

1) turn on batteries
2)turn on APU bleed
3)turn off a/c packs 1 & 2
4)apu master on
5)apu start on
6)switch on packs 1 & 2 -------this is where the prob is......pack 2 is still in fault??????? while pack 1 is ok

So why is pack 2 not working?


Michael

[bindook]

The plot thickens......just updated to latest builds ........now engine 1 won't start but the fault in the packs has gone??????????

Is it normal for the apu bleed to turn off after starting 1 engine? As i finally got them all working....started 1 checked the apu bleed & it was off turned it on then no2 finally worked :-)

Michael

[dodiano]

Roberto,
might have found the problem but not how to solve it.

1) turn on batteries
2)turn on APU bleed
3)turn off a/c packs 1 & 2
4)apu master on
5)apu start on
6)switch on packs 1 & 2 -------this is where the prob is......pack 2 is still in fault??????? while pack 1 is ok

So why is pack 2 not working?


Michael



Ok the APU has to be on before the APU BLEED if not it will not illuminate... So is APU MASTER ON... AND APU START ON it will then show the Avail light in green ...Ok now you turn the APU BLEED ON... Packs 1&2 are going to be in the AUTO position lights off not in ON... Packs shouldn`t be in fault if the APU bleed is running...

Ok from your other post I guess you solved the problem right??

Regards,

Roberto

[bindook]

sort of yes & no, i did finally get the engines started but then pack 2 went into fault mode whilst airborne???? Will have to investigate further :-(




Michael

[Bob Reed]

Sounds to me like you have something else interacting with the PMSystems software. What AC model are you using?

[bindook]

An A320-200 i grabbed of flightsim.com


Michael

[dodiano]

Yeah the one here to help you is Bob cause I have no idea how PM systems work!

Regards,

Roberto

[bindook]

Roberto, problem is now really solved. There was a problem with my startup procedure. Thanks for your help.



Michael

[dodiano]

That is great news buddy!! What happened??

Take care,

Roberto

[bindook]

The reason for No.2 not starting was after i started no.1 The xbleed was not open!!!

Below is the new checklist....does this look right Roberto?

"short" Checklist for engine start
- Battery ---------- ON
- Parkbrake ------ Set
- EXT PWR ------ ON
- Fuel Pumps --- ON
- APU Master --- ON
- APU Start ------ ON
- Pack 1&2 ------- OFF
- APU Gen ------- ON (when "AVAIL")
- BUS TIE -------- ON
- APU Bleed ----- ON
- EXT PWR ------- OFF
--- Eng 1 Start
--- ENG 1 --------- ON
--- IGN / START
------ CROSSBLEED -------- AUTO or OPEN !!!!!!
------ Eng 2 Start
------ ENG 1 ------------ ON
------ IGN / START
...


Michael