29 November 2007: The existence of a pre-existing stress fracture in the engine retaining bolt (caused by mechanic error due to overtightening) and the lack of documentation showing compliance by the Nationwide AMO with the engine bolt inspection airworthiness directive for a period of more than 3 years prior to the accident led the South African Civil Aviation Authority to ground all Nationwide aircraft for non-compliance with the applicable Civil Aviation regulations. The official CAA report further highlighted that the airline's service organisation was not in possession of a certificate to operate for a month prior to and at the time of the accident. Numerous points of compliance raised by safety inspectors had remained open despite repeated inspections and audits during a period of some years hence the lack of a certificate to operate for the Nationwide Air Maintenance organisation at the time of the accident to CE723.