An engine that failed on a Southwest Airlines plane recently causing the fatality of one passenger had passed 7 inspections prior to the flight.
Since 2012, there had been tests and inspections on the engine and no faults were found after many visual observations.
It was stated that the fan blade that failed had completed over 30,000 flights before it failed on April 17, causing the death of Jennifer Riordan. Riordan died after being partially sucked out of the window of the aircraft.
The investigation into the crack is still ongoing. The Federal Aviation Administration has urged engine checks for many airliners.
