An Air Force plane fire threatening the lives of 27 airmen on board in April resulted in $62.4 million in damage. The cause of the fire? A loose nut.
According to a CNN article , a report by Air Force investigators said that maintenance personnel failed to tighten the nut which connected an oxygen tube to a junction fitting above the galley, resulting in a flammable oxygen leak.
This incident is one of many that exemplifies the importance of the attention to detail in maintenance practices, because even the smallest of fastener fails can end up being catastrophic.