Missing parts from its main engine caused an F-16 Fighting Falcon jet to crash at Andrews Air Force Base in Maryland earlier this year, officials said.
The crash occurred April 5 as its pilot was participating in a routine training flight from the base.
Thursday, the Air Force Command said an investigation found the jet had been missing "a required 600-degree training ring and the anti-rotation pin" on its main engine -- parts that measure fuel flow.
https://www.upi.com/Top_News/US/2017/10/27/Missing-engine-parts-caused-F-16-crash-USAF-says/6341509108383/I did 20 years as an engine mechanic and there are a number of ways that fuel flow is measured. These are probably parts inside of the Main Fuel Control used to meter fuel, thus explaining the "uncommanded engine acceleration, followed by a loss of thrust".
