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Analysis

Summary

During power reductions for landing, the engine compressor air scheduling to the left engine was incorrect. That resulted in disrupted airflow throughout the engine and subsequent stalling. The discrepancy in the air scheduling of the engine was due to the incorrect performance of the engine vane bleed control unit. This anomaly could also have resulted in excessive amounts of fuel for the power setting and contributed to the fire witnessed coming from the left engine exhaust as reported during the 5 January 2002 occurrence on this aircraft (see ATSB report 200200006).

 
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