BOI Timeline
Biggus,
I do not know why MOD stopped the timeline on 20 Apr, but if you look at Part 2A to the BOI which follows from the main BOI page 2-51 the AOC 2 Group re-convened the Board on 24 May for further work - there is, confusingly, a second set of pages 2-1 to 2-6 and a further Annex A dealing with fuel leak statistics. No date is given for the end of this additional work, but they quote a date of June for one of their references.
Hope this helps.
JB