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A B757-200 on takeoff climb at 900 ft declared an emergency and diverted due to #1 engine fluctuating power and vibration caused by 9TH stage compressor failure.
| Attributes | |
| ACN | 495723 |
| Time | |
| Date | 200012 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 900 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Fog |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : takeoff |
| Route In Use | departure : other published ifr departure |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 17920 flight time type : 4400 |
| ASRS Report | 495723 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 8200 flight time type : 2050 |
| ASRS Report | 496056 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : diverted to another airport flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Environmental Factor Weather |
| Primary Problem | Aircraft |
Narrative:
Takeoff from runway 24L at XXX with takeoff thrust 1 selected. At 900 ft, left engine began to make an abnormal noise, followed by fluctuating engine indications and abnormal airframe vibrations. The left engine throttle was retarded towards idle and engine noise, airframe vibration and fluctuating engine indications returned to normal. Cockpit emergency manual was performed. Advancing left engine throttle caused engine noise, airframe vibration and fluctuating engine indications to return. Left engine throttle was retarded and engine returned to normal. Emergency was declared with ATC. Dispatch and maintenance were notified. Diverted to ZZZ, us. Flight attendants were briefed to prepare for an emergency. Passenger were briefed via PA of our situation. Overweight landing (212000 pounds) was performed at ZZZ, us. Engine stall and overweight landing written up in aircraft logbook. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was a B757-200 and maintenance reported the #1 engine 9TH stage compressor blades failed. The reporter said the engine manufacturer was unknown.
Original NASA ASRS Text
Title: A B757-200 ON TKOF CLB AT 900 FT DECLARED AN EMER AND DIVERTED DUE TO #1 ENG FLUCTUATING PWR AND VIBRATION CAUSED BY 9TH STAGE COMPRESSOR FAILURE.
Narrative: TKOF FROM RWY 24L AT XXX WITH TKOF THRUST 1 SELECTED. AT 900 FT, L ENG BEGAN TO MAKE AN ABNORMAL NOISE, FOLLOWED BY FLUCTUATING ENG INDICATIONS AND ABNORMAL AIRFRAME VIBRATIONS. THE L ENG THROTTLE WAS RETARDED TOWARDS IDLE AND ENG NOISE, AIRFRAME VIBRATION AND FLUCTUATING ENG INDICATIONS RETURNED TO NORMAL. COCKPIT EMER MANUAL WAS PERFORMED. ADVANCING L ENG THROTTLE CAUSED ENG NOISE, AIRFRAME VIBRATION AND FLUCTUATING ENG INDICATIONS TO RETURN. L ENG THROTTLE WAS RETARDED AND ENG RETURNED TO NORMAL. EMER WAS DECLARED WITH ATC. DISPATCH AND MAINT WERE NOTIFIED. DIVERTED TO ZZZ, US. FLT ATTENDANTS WERE BRIEFED TO PREPARE FOR AN EMER. PAX WERE BRIEFED VIA PA OF OUR SIT. OVERWT LNDG (212000 LBS) WAS PERFORMED AT ZZZ, US. ENG STALL AND OVERWT LNDG WRITTEN UP IN ACFT LOGBOOK. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS A B757-200 AND MAINT RPTED THE #1 ENG 9TH STAGE COMPRESSOR BLADES FAILED. THE RPTR SAID THE ENG MANUFACTURER WAS UNKNOWN.
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.