Friday 4 pm.

 Dave McGinnis tells me that they have identified two leaks, of which at 
 least one is "significant", in the A60 tanks, that they have a good guess at 
 where exactly the leaks are and that they are preparing to do the measurements
 and - if the leaks turn out to be where expected -implement the fixes by
 the end of Sunday. If the leaks are in less accessible places, fixing will 
 take longer. We should know where we stand/sit by Saturday afternoon.

 After the fixes are done and the tanks are back on line, there will be a
 proper bake which takes (at least) 5 days. There will be stacking studies
 and work on phasing of the cooling during this time.

 Stephen