This BoI did not do the job that it was given, as with the Nimrod BoI. In that case the coroner had to do it instead, finding why the aircraft crashed (it was unairworthy) and what needed to be done to avoid a repetition (ground the others until made airworthy). With this accident the BoI's job was instead done by the FAI and the HoL. The latter in particular did a praiseworthy job IMHO. See if you agree, for much of its report is at:
House of Lords - Chinook ZD 576 - Written Evidence
The House of Lords - Committee to review Chinook ZD 576 crash
House of Lords - Chinook ZD 576 - Report
It does not reflect well upon the BoI or the RO's hence the hostility to it from their apologists, but it is objective and thorough which they were not. I commend it.
baston (2): " Would you support the accident investigation being reopened (under whatever guise that the RAF could manage given caz's list of obstructions) to have that very evidence and those very witnesses presented? "