The Nimrod Report by Mr Haddon-Cave QC revealed that systemic faults permeated UK Military Airworthiness and called for a Military Aviation Authority to be established in order to restore it. That was the good part.
Unfortunately he ignored evidence that the damage had been caused by RAF VSOs in the late 80s/early 90s, describing those years instead as a "Golden Period"! That cover up ensured that the MAA was compromised from the start, as the independence that would have enabled reform was denied it. It has thus been instead the bureaucracy complained of by Tourist ever since, and unairworthiness continues to infect UK military airfleets, such as the ACO one, as a result.