ON DEPARTURE; B757-200 FLT CREW ENCOUNTERS ENG LIMITER AND EEC EICAS MESSAGES. MANUAL THROTTLE RESULTS IN COMPRESSOR STALLS AT LOW THRUST SETTINGS. DIVERT TO ALTERNATE.

Date: 2005-09 · Aircraft: B757 Undifferentiated or Other Model · Phase: initial_climb

Anomalies: aircraft-equipment-problem-critical

Synopsis

ON DEPARTURE; B757-200 FLT CREW ENCOUNTERS ENG LIMITER AND EEC EICAS MESSAGES. MANUAL THROTTLE RESULTS IN COMPRESSOR STALLS AT LOW THRUST SETTINGS. DIVERT TO ALTERNATE.

Narrative

FO'S LEG DEPARTING. AT 1000 FT AGL WE HAD THE L ENG LIMITER MESSAGE; AN ELECTRONIC ENG CTL (EEC) MESSAGE; ALONG WITH AUTOTHROTTLES DISCONNECT MESSAGE. WE CONTINUED CLBOUT WITHOUT REDUCING THRUST ON THE L ENG DUE TO HIGH TERRAIN. AFTER PASSING THROUGH 17000 FT MSL; WE GOT INTO THE CHKLIST FOR ENG LIMITER; FOLLOWED BY THE ELECTRONIC ENG CTL CHKLIST. WE OPERATED THE REMAINDER OF THE FLT WITH NO AUTOTHROTTLES. WE PASSED A MESSAGE TO OPS WITH THE MAINT MESSAGE; AND GOT A MESSAGE BACK TO PROCEED TO OUR ALTERNATE. APCHING ZZZ; WE RECEIVED A DSCNT FROM ATC FROM FL370 TO FL290. AS I BROUGHT THE THROTTLES BACK TO IDLE; I FIRST FELT; AND THEN HEARD; THE L ENG COMPRESSOR STALL. I PUSHED THE THROTTLES BACK UP ABOVE 1.20 EPR OR 65% N2. THE COMPRESSOR STALL CEASED. THE CAPT AND I DISCUSSED A GAME PLAN TO ADVISE ATC TO KEEP A CONSTANT DSCNT IF POSSIBLE TO AVOID NEEDING TO BRING THE THROTTLES TO IDLE. WE ALSO DECIDED TO START THE APU IN CASE WE LOST THE ENG DURING THE APCH OR LNDG. FINALLY WE THOUGHT WE SHOULD HAVE EMER VEHICLES READY IN CASE WE LOST THE ENG. I FLEW THE APCH WITH NORMAL LNDG CONFIGN AND MANUAL THROTTLES. THE CAPT SPOKE WITH ATC AND HELPED MONITOR THE ENG AND AIRSPD. AT 30 FT AGL; I BROUGHT THE THROTTLES TO IDLE AND IMMEDIATELY FELT THE L ENG COMPRESSOR STALLING AGAIN. AS WE TOUCHED DOWN; THE ENG DIED AND NEARLY SIMULTANEOUSLY THE CAPT SHUT THE ENG DOWN. WE TAXIED CLR OF THE RWY AND WERE FOLLOWED BY EMER VEHICLES TO PARKING.

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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.