Aircraft and Flight
The accident involved a Fokker F27 Mk 500 Friendship, registration G-CEXF, operating at Jersey Airport in the Channel Islands on 5 June 2001. The aircraft was powered by Rolls-Royce Dart engines.
Engine Failure
During the flight, the engine suffered an uncontained failure. The high-pressure turbine (HPT) disc separated, leading to a fire. The crew performed an emergency landing, and the aircraft sustained damage from the fire and debris.
Investigation Findings
The investigation focused on the HPT disc. The disc, which had been in service for a number of cycles, exhibited a fracture that originated from the disc rim. Examination revealed evidence of crack propagation along the diaphragm and rim. The report detailed the disc's history, including previous inspections and life limits.
Additional Factors
The investigation also noted similar failures in other Dart engines and considered issues related to disc life, inspection criteria, and seal arm wear. No definitive cause for the disc failure was explicitly stated in the factual sections of the report.