Uh-Oh... Turns Out it IS Important to Use Factory-Approved O-Rings!
The Army issued a surprising grounding order earlier this week, halting flight operations for more than 400 Chinook helicopters over an issue that could lead to engine fires. In a statement, Cynthia Smith said the Army encountered an unspecified number of fuel leaks that lead to engine fires, leading to the fleet being held on pause until the issue could be diagnosed. No injuries were reported, and some reports placed the number of problem aircraft around 70 helicopters in total.