Pilot Help Dangerous Goods.!!!!!!!
 

Hey guys and gals. Greetings and please may I request some assistance. I know there are always cleverer people than me around!!!
What are the Dangerous Goods requirements for carrying EMPTY - LPG canisters/cylinders on board a helicopter. A Reference to a DG Manual would be fantastic.
Many thanks.

I am not 100% certain but I think EMPTY LPG canisters should be treated as DGRs. Still a highly flammable item even though they are empty.

Tx Air France - I believe they have carried gas before. I seem to remember if they are opened,vented and the valve taped open so it cant be closed then they are OK.

Just cant confirm it.

IATA DG manual 2.3.2.5 refers to camping stoves and liquefied gas canisters, other gas cylinders should be around the same paragraph. If I get chance I will look in the good book tomorrow:ok:

Checked the book and it looks like 2.3.2.5 is the one you need to read, lots of things to be done before you take them:uhoh:

http://www.flybmi.com/media/assets/D...15156,1772.pdf

page 1, 4th item down

If unpressurized I'd treat it as UN1993 Flam liquid, nos, probably under III


That said, I don't know how you would find out how much you have and how you would pack it. It is probably in excepted quantities.

My understanding to this item that could be classified to Div 2.1. Flammable Gas, depends on what kind Gas containing and the pressure.
Please refer to IATA DGR, 3.2.2, pg 94, on current version manual, year 2010. Cheers/Fire

By empty, do you mean empty and depressurized?

I suppose the 2.1 suggestion above is technically correct as it will be a gas.

Surely if you depressurize the tanks and flush them with N2 then there is no DG risk whatsover anyway. That is probably the safest option.

I was probably wrong with my Class 3 guess above, as I've not read the DG manual for years, can someone just remind me, is the class of liquid or gas ie 3 or 2 considered under ambient conditions, or under the conditions in the vessel it is stored in?

If the cylinders are empty, de-pressurized, have no residue and have been completely flushed/cleaned then they can be considered as "not classified as hazardous for transport". You could complete a Certificate of NON-Dangerous goods to certify this to anyone who may be concerned.

Note
 

The htreads on the main valve are counterclockwise to tighten and other way to unscrew. The size is large so you need a big adjustable wrench. I would untighten the whole valve to let go any gas. The gas is heavier than air so you need to lower the neck to make sure all is evacuated.