Nutlike if you read the interim report from AAIB you'll realise why the Hunter is still grounded. The two mk58's flying on the military register are because they can access ejection seat cartridges which civil registered can't at the moment. The T7/8's probably won't fly again in the UK because of the engine inspection requirement. As the operator recently told me , why do an expensive inspection if you can't carry out repairs , there are no approved facilities for the Avon 122 , but there are for the 200 series so the the MK58's and F6/9's are sustainable.