We cannot guarantee no leakage. No-one operating any aircraft in any organisation in the World can do that.
At the risk of probing too deep, neither can you guarantee no ignition! By ground testing the AR system and over pressurising it at that, it would seem that consistently no leaks resulted, but as you say that did not guarantee no leakage, indeed it occurred, and seemingly in some abundance. A classic case of 'ground tested and found serviceable'? By the same token by removing obvious sources of ignition from the bomb bay you can't guarantee no source of ignition! Yet with all this known, AR continued and even now there seems to be a nudge, a wink, that a mayday and immediate diversion was a bit OTT. This can do, push on, culture is the antithesis of what prudent operation should mean. Having called for the CAS's resignation, the grounding of the fleet until it is made airworthy, and an independent inquiry into Military Airworthiness Regulation, I was content to hold my peace but:
Nice post
Today 19:16
referring to the top quote could not go uncontested I'm afraid.