
The Army on Wednesday said it cannot specify a timeline for its investigation into fuel leaks causing engine fires on some CH-47 Chinook heavy-lift helicopters that has led to grounding the fleet until it determines the number of affected aircraft. “Until we determine the full number of affected aircraft, we cannot say how long it will take. Based on the results of our investigation some aircraft may not require corrective measures and may soon return to normal flight operations. However,…