GEnx HPT Cracks No Threat To 787 Schedule

By Guy Norris .

General Electric says microcracks discovered on a first- stage, high-pressure (HPT) turbine blade in a ground test GEnx-1B do not present an obstacle to achieving early ETOPS certification and will not affect entry into service of the Boeing 787.

The engine maker says the cracks were discovered in January during a scheduled borescope inspection of a ...

---