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A B737-700 flight crew declared and emergency and returned to their departure airport following the apparent ingestion of a bird in the left engine shortly after takeoff.
| Attributes | |
| ACN | 926964 |
| Time | |
| Date | 201012 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Inflight Event / Encounter Bird / Animal |
Narrative:
On climbout; passing through 3;000 ft; felt a thump on the airframe; followed by a vibration. Upon scanning gages; noted #1 engine vibration at about 2.8; and promptly smelled an odor entering the cabin through the air conditioning system. All other engine and airframe indications were normal. We leveled off at 4;000 ft; planned an air return and declared an emergency. Vibration reduced to almost normal level after power reduction and the approach and landing were normal. When reverse thrust was applied after landing; #1 engine vibration increased to approximately 1.5. Returned to the gate with no further abnormal indications.all indications after landing suggest that a bird was ingested in the #1 engine during climbout.
Original NASA ASRS Text
Title: A B737-700 flight crew declared and emergency and returned to their departure airport following the apparent ingestion of a bird in the left engine shortly after takeoff.
Narrative: On climbout; passing through 3;000 FT; felt a thump on the airframe; followed by a vibration. Upon scanning gages; noted #1 engine vibration at about 2.8; and promptly smelled an odor entering the cabin through the air conditioning system. All other engine and airframe indications were normal. We leveled off at 4;000 FT; planned an air return and declared an emergency. Vibration reduced to almost normal level after power reduction and the approach and landing were normal. When reverse thrust was applied after landing; #1 engine vibration increased to approximately 1.5. Returned to the gate with no further abnormal indications.All indications after landing suggest that a bird was ingested in the #1 engine during climbout.
Data retrieved from NASA's ASRS site as of April 2012 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.