Engines
NTSB Homes In On Source of GEnx Failure
The first Air India Boeing 787 sits on display after rolling out of the manufacturer's Charleston, S.C., factory on April 27. (Photo: Boeing)
The first Air India Boeing 787 sits on display after rolling out of the manufacturer's Charleston, S.C., factory on April 27. (Photo: Boeing)

The NTSB has turned its attention to a fan mid-shaft in its investigation into the July 28 contained failure of a General Electric GEnx engine during a ground test run of an Air India Boeing 787 in Charleston, N.C. The Board confirmed today that the part fractured at the forward end of the shaft, rear of the threads where assembly calls for installation of a retaining nut. The NTSB said it has begun several detailed examinations of the fan mid-shaft, including dimensional and metallurgical inspections.