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A B757-200 after leveloff at FL350 declared an emergency and diverted due to #2 engine experiencing several compressor stalls caused by a failed 15TH stage compressor.
| Attributes | |
| ACN | 434464 |
| Time | |
| Date | 199904 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : cam.vor |
| State Reference | NY |
| Altitude | msl single value : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 7640 flight time type : 2400 |
| ASRS Report | 434464 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 190 flight time total : 10000 flight time type : 4000 |
| ASRS Report | 434461 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : provided flight assist flight crew : declared emergency flight crew : landed as precaution |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
5 mins after leveloff, right (#2) engine compressor stalled at FL350. 30 seconds later, another stall, 1 min after that the 3RD compressor stall. Declared an emergency. Returned to bos, our departure city. On descent, approximately FL335, the 4TH compressor stall. No engine limitations were exceeded. Left motor running. Performed heavy weight landing in bos 217000 pounds. Normal landing, no other problems noted. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was equipped with P&west 2037 engines. The reporter said the engine was borescoped and the 15TH stage compressor was found to have failed.
Original NASA ASRS Text
Title: A B757-200 AFTER LEVELOFF AT FL350 DECLARED AN EMER AND DIVERTED DUE TO #2 ENG EXPERIENCING SEVERAL COMPRESSOR STALLS CAUSED BY A FAILED 15TH STAGE COMPRESSOR.
Narrative: 5 MINS AFTER LEVELOFF, R (#2) ENG COMPRESSOR STALLED AT FL350. 30 SECONDS LATER, ANOTHER STALL, 1 MIN AFTER THAT THE 3RD COMPRESSOR STALL. DECLARED AN EMER. RETURNED TO BOS, OUR DEP CITY. ON DSCNT, APPROX FL335, THE 4TH COMPRESSOR STALL. NO ENG LIMITATIONS WERE EXCEEDED. LEFT MOTOR RUNNING. PERFORMED HVY WT LNDG IN BOS 217000 LBS. NORMAL LNDG, NO OTHER PROBS NOTED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS EQUIPPED WITH P&W 2037 ENGS. THE RPTR SAID THE ENG WAS BORESCOPED AND THE 15TH STAGE COMPRESSOR WAS FOUND TO HAVE FAILED.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.