Originally Posted by
spannersatcx
No you're reading it wrong
It says Installed 2, Nbr reqd 1 : And that must be No1 bottle. As it says no2 bottle may be inop by inference that means No1
must be operative.
The note means that if the extinquishing system, for whatever reason in the aft cargo hold is inop it can not be used, you can only use the fwd one. But if it is because of bottle 1 discharge you're going nowhere end of story. Because bottle 1 has to be installed.
Yes, I'm reading it wrong. Fellows in my airline are reading it wrong as well. But I have a copy of a different A340/330 operator's MEL which says very clearly:
Agent 1 u/s,
both Cargo Compartments must be empty.