Edited to add. After the accident, M-B issued SIL704, which said 'flush', not one or 1.5 thread pitches. As MoD (specifically the Service Inquiry/MAA according to the evidence) required this, why has RA4266 not been updated? Is this just applicable to Mk10B seats? To the RAF only? To all stiffnut applications? As the CAA promulgated this SIL, the world and his dog must now be thoroughly confused.
And here lies the issue that this and other similar threads keep highlighting: the constant changing of technical information, regulations, reducing training has culminated in a confusing and contradictory environment that is counter productive to its concept of safety/airworthiness and the protection of life.
Will changing the rules and regulations again, make any difference, is there a will from those at the top to admit the erosion of safety/airworthiness has been happening, if they did, do they have the will and knowledge to make those changes, or will more accidents/loss of life have to occur, and more importantly someone in the military management to actually be held culpable and dealt with appropriately to get the message through.