Longer Ron,
Regardless of whether the hinge was a standard Grob part (and was it a standard part for that glider or a standard part from another Grob aircraft?) from the DHAN it would suggest that implementation of that modification hadn't been through due process with the type certificate holder.
What I'd like to know is what the SO1 & SO2 Engineering, Quality Audit and Contract Management posts and Soaring (Oxford) at Syerston were doing prior to 'the pause'.
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