I'm just waiting to see if the firebox solution, once signed off by the FAA, doesn't become the long term fix.
That is why this whole 'temporary certification' thing is a complete fantasy.
The only way to avoid what EEngr is predicting from becoming fact, is if the temporary certification comes with a time limit, say four months.
If the four months pass and Boeing tell the FAA they still don't have a permanent solution, what happens then? If the fleet is once again grounded then Boeing can quite rightly turn round to the FAA and say "You said our plane was safe to fly yesterday. Why isn't the exact same plane safe to fly today?"
I'm sorry but I can only see this happening if Boeing do have a permanent fix and are given time to dot the 'i's and cross the 't's. This 'put it in a box while we work on the problem' is a non-starter.
