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A bird strike in 1 engine of an large transport air carrier aircraft damaged 3 of the engine fan blades causing the flight crew to reduce power to the engine above 10000 ft.
| Attributes | |
| ACN | 256857 |
| Time | |
| Date | 199311 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : yul |
| State Reference | PQ |
| Altitude | agl bound lower : 0 agl bound upper : 10 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : crg |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 11000 flight time type : 180 |
| ASRS Report | 256857 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 14000 |
| ASRS Report | 256850 |
| Events | |
| Anomaly | aircraft equipment problem : less severe inflight encounter other other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | other |
| Consequence | other Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
At takeoff from montreal runway 06R seagull flew by cockpit at vr, heard thud sound moments later, followed by vibration sound. No abnormal engine or aircraft indications, all normal. Continued takeoff and climb out. At about 10000 MSL, noticed high engine vibration readings about 4.0. Engine reading still normal reduced power on engine. Left running at reduced power for balance of flight to bos. Normal approach and landing. Upon engine inspection at bos, found 3 badly bent fan blades on the right engine. We elected to leave the engine running en route because WX was marginal at montreal. All engine readings were normal (N1, N2, egt, ff, oil pressure, oil temperature) short time to bos with good WX, equipment and maintenance.
Original NASA ASRS Text
Title: A BIRD STRIKE IN 1 ENG OF AN LGT ACR ACFT DAMAGED 3 OF THE ENG FAN BLADES CAUSING THE FLC TO REDUCE PWR TO THE ENG ABOVE 10000 FT.
Narrative: AT TKOF FROM MONTREAL RWY 06R SEAGULL FLEW BY COCKPIT AT VR, HEARD THUD SOUND MOMENTS LATER, FOLLOWED BY VIBRATION SOUND. NO ABNORMAL ENG OR ACFT INDICATIONS, ALL NORMAL. CONTINUED TKOF AND CLBOUT. AT ABOUT 10000 MSL, NOTICED HIGH ENG VIBRATION READINGS ABOUT 4.0. ENG READING STILL NORMAL REDUCED PWR ON ENG. LEFT RUNNING AT REDUCED PWR FOR BAL OF FLT TO BOS. NORMAL APCH AND LNDG. UPON ENG INSPECTION AT BOS, FOUND 3 BADLY BENT FAN BLADES ON THE R ENG. WE ELECTED TO LEAVE THE ENG RUNNING ENRTE BECAUSE WX WAS MARGINAL AT MONTREAL. ALL ENG READINGS WERE NORMAL (N1, N2, EGT, FF, OIL PRESSURE, OIL TEMP) SHORT TIME TO BOS WITH GOOD WX, EQUIP AND MAINT.
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.