Families of people killed in the 1994 RAF Chinook helicopter crash have urged Greater Manchester mayor Andy Burnham to commission an independent review of the disaster. The Guardian reports the families are calling for a fresh look at the crash, including consideration of evidence that has emerged since the original investigation. The crash occurred when the Chinook HC2 helicopter went down on the Mull of Kintyre in south-west Scotland during a flight from Northern Ireland, killing 29 serving military personnel. The families’ request to end what they describe as a “cover-up culture” is presented as part of wider pressure on senior figures to reassess the circumstances and findings surrounding the tragedy. The Guardian says the call includes an order for the review to take account of new material related to the incident. Other reporting in the provided material references the same theme of asking Burnham for a review, but does not add additional confirmed details beyond the families’ demand.