The spare parts, from simple nuts and bolts to more critical turbine blades, went into dozens of jet engines made by a General Electric GE 1.13% joint venture during maintenance work.

The U.S. Federal Aviation Administration issued an alert on Thursday warning that unapproved parts might be installed in certain General Electric model CF6 jet engines, telling owners to inspect ...

Major U.S. airlines have found that some jet engines installed in aircraft were built with parts that had forged safety certificates, leading to a lawsuit against a London-based parts supplier.

Jet engine maker CFM International said on Wednesday the number of engines suspected of containing falsely documented parts from a UK distributor had risen to 126, including 16 inside its own ...