What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On takeoff the left engine had two compressor stalls. The throttle was retarded slowly and then advanced producing another stall. The power was set at 1.2 epr and the flight returned to the airport. Maintenance found the honeycomb in the cold stream (interior compressor lining) loose with two holes in the compressor case and one hole in the turbine case. There was no penetration of the engine cowling. The engine was replaced and aircraft was returned to service. The removed engine was shipped to a twa engine maintenance facility for tear down and analysis. It is unknown at this time if parts of the compressor liner was ingested causing an uncontained failure of the compressor and turbinecomponents. The incident report will be amended pending results of the tear down and when the failed part and part numbers are known.
As the FAA filed it
(-23) ON TAKEOFF THE LEFT ENGINE HAD TWO COMPRESSOR STALLS. THE THROTTLE WAS RETARDED SLOWLY AND THEN ADVANCED PRODUCING ANOTHER STALL. THE POWER WAS SET AT 1.2 EPR AND THE FLIGHT RETURNED TO THE AIRPORT. MAINTENANCE FOUND THE HONEYCOMB IN THE COLD STREAM (INTERIOR COMPRESSOR LINING) LOOSE WITH TWO HOLES IN THE COMPRESSOR CASE AND ONE HOLE IN THE TURBINE CASE. THERE WAS NO PENETRATION OF THE ENGINE COWLING. THE ENGINE WAS REPLACED AND AIRCRAFT WAS RETURNED TO SERVICE. THE REMOVED ENGINE WAS SHIPPED TO A TWA ENGINE MAINTENANCE FACILITY FOR TEAR DOWN AND ANALYSIS. IT IS UNKNOWN AT THIS TIME IF PARTS OF THE COMPRESSOR LINER WAS INGESTED CAUSING AN UNCONTAINED FAILURE OF THE COMPRESSOR AND TURBINECOMPONENTS. THE INCIDENT REPORT WILL BE AMENDED PENDING RESULTS OF THE TEAR DOWN AND WHEN THE FAILED PART AND PART NUMBERS ARE KNOWN.
Other reports on N906TW · 5
Matched to the same aircraft by N-number and date.