The US Federal Aviation Administration has ordered the removal and reconfiguration of a batch of International Aero Engines V2500 engines after it was discovered that some were fitted with an "improper" high pressure turbine (HPT) module during overhaul.

IAE began informing operators of the situation last June. It says 32 engines are affected and that "no events are attached" to the issuing of an FAA airworthiness directive covering the replacement of the powerplants. The FAA says the action is prompted by "reports of engines that do not conform to the engine type design, which could cause a low cycle fatigue life reduction of the HPT stage 1 disk." It adds that failure to implement the change could "result in an uncontained engine failure".

Most affected engines must be reconfigured at their next shop visit or changed prior to accumulating 5,100 cycles. A single engine has until the 7,600th cycle.

Source: Flight International