Bombardier is beginning the process of trying to determine what caused an uncontained engine failure during ground maintenance testing of CSeries Flight Test Vehicle 1 in Mirabel, Quebec, on May 29 that has halted the certification program for the narrow-body jetliner.
One of the test airplane’s Pratt & Whitney PW1000G geared turbofan engines failed during routine testing, which also damaged the airplane when shrapnel exploded from the nacelle.
