Overview
On July 26, 2011, a C.A.L. Cargo Airlines Boeing B747-230F departed from Liège Airport (LGG) in Belgium. During the initial climb, approximately 1000 feet above ground level, the crew heard a loud noise, described as a bang, emanating from the No. 2 engine, a GE CF6-5E2 turbofan located inboard on the left wing.
Incident Details
Following the loud bang, the crew observed a reduction in N2 (low pressure rotor speed) and a sharp rise in exhaust gas temperature (EGT) in the No. 2 engine. The crew subsequently shut down the affected engine and initiated a fuel dump. The aircraft returned to Liège Airport and landed without further incident.
Initial inspection of the No. 2 engine revealed metal debris in the tailpipe, consisting of fractured pieces of turbine blade and vane material.
Investigation
The investigation is under the jurisdiction of the Israeli Ministry of Transport. The Ministry has requested assistance from the U.S. National Transportation Safety Board (NTSB). Further information may be obtained from the Ministry of Transport's Chief Investigator.