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Old 18th Jul 2008, 09:36
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Man Flex 37.5
 
Join Date: Apr 2005
Location: Dubai
Age: 55
Posts: 170
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Revision 42 is out or almost out.

The procedure can be broken down into manageable chunks, at any time you can stop the procedure and go to 1.06 to remove the smoke

Primary Actions
Either from ECAM if Avionics Smoke or QRH which includes donning of oxygen masks

Smoke Origin
Is it something obvious i.e. oven fire that can be isolated, if you can see it is air conditioning then go straight to the procedure

Revision 42 has taken away the shedding of busses to isolate the smoke, this has been replaced with Emergency Electrical config consider.
The reason for this is due to the possible permanent loss of DC1 & DC2 if at least one battery was charging.

The procedure to enter into the Emer Elec Config can be confusing because it says to follow ECAM without the Gen reset, all this means is that when you follow the ECAM, perform all of the items without the gen reset, it doesn’t mean you shouldn’t put the gens back on before landing gear extension. Also the line about gravity feeding is not relevant as 1 pump in each wing is powered.

Overall you should be heading for an airport.

Removal

To summarise this procedure, you are trying to get down to FL100 or MEA so you can depressurise the cabin, get the packs off, the Ram air on and open the outflow valve.

Part of the checklist is badly written because it asks if you were in Emer Elec Config and then an indented line requesting the APU Master Switch on (only the master switch needs to go on, not start the APU, this connects the batteries to the battery bus providing control of the outflow valve).

Most people read the top line then say No not in Emer Elec Config and then skip the important part of the procedure, packs off, Ram air on and opening the outflow valve.

Regards

MF
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