ACR HAS MULTIPLE BIRD STRIKES ON TKOF ROLL.

Date: 1992-10 · Aircraft: Medium Large Transport; Low Wing; 2 Turbojet Eng · Phase: takeoff

Anomalies: aircraft-equipment-problem-critical|other-unspecified

Synopsis

ACR HAS MULTIPLE BIRD STRIKES ON TKOF ROLL.

Narrative

ACFT SUSTAINED MULTIPLE BIRD STRIKES ON TKOF ROLL ON RWY 22 AT EVV. SPD AT TIME OF IMPACT WAS APPROX 120-125 KIAS; AND REDUCED V1 WAS 123. THE BIRDS WERE PART OF A FLOCK OF 20-30 SMALL BIRDS FLYING FROM R TO L; AND THEY APPEARED TO STRIKE MOSTLY ON THE R SIDE OF THE ACFT. THERE WERE SEVERAL RAPID IMPACT SOUNDS; AND A MOMENTARY SLIGHT HESITATION IN THE ACCELERATION OF THE ACFT. BOTH SETS OF ENG INSTS APPEARED NORMAL THROUGHOUT THE FLT. A STRONG 'BURNING BIRD' SMELL BEGAN IMMEDIATELY; AND LASTED 5-10 MINS. ON CLBOUT; WE ADVISED EVV TWR OF THE BIRD STRIKES. I SERIOUSLY CONSIDERED RETURNING TO LAND AT EVV TO CHK FOR POSSIBLE DAMAGE; BUT ELECTED TO CONTINUE TO IND ONLY BECAUSE THERE WAS NO INDICATION FO ANY ENG PROBLEM WHATSOEVER ON THE GAUGES. FLT TO IND WAS UNEVENTFUL; AND WHILE ENRTE ARTCC RELAYED A MESSAGE TO US FROM EVV APCH CTL THAT APPROX 2 DOZEN BIRDS/BIRD PARTS HAD BEEN FOUND ON THE RWY. UPON ARR AT IND; WE INSPECTED THE ACFT AND FOUND 3 OR 4 BIRD STRIKE MARKS IN THE #2 ENG; 2 OR 3 MARKS IN THE #1 ENG; AND SEVERAL OTHER MARKS ON THE FUSELAGE AND WINGS. THERE WAS NO VISIBLE DAMAGE TO THE #2 ENG; BUT THE #1 ENG HAD 3 DAMAGED BLADES; INCLUDING 1 MISSING PIECE (1/2 INCH X 1 INCH LONG) AT THE OUTER EDGE OF A BLADE; AND A SMALL NICK IN ANOTHER BLADE. IT WAS DETERMINED THAT THE #1 ENG WOULD HAVE TO BE CHANGED; AFTER COMPLETING THE INTERNAL INSPECTION. I HAVE SAVED A SAMPLE OF THE BIRD FEATHERS WHICH I CAN SEND TO ANY INTERESTED AGENCY. COMMENTS: THE ONLY THING I CAN THINK OF TO HAVE AVOIDED THIS PROBLEM WOULD BE IF AN ARPT VEHICLE HAD PRECEDED US DOWN THE RWY TO ATTEMPT TO FLUSH OUT THE FLOCK OF BIRDS; BUT I REALIZE THAT IT'S PROBABLY SOMETHING THAT WILL CONTINUE TO BE A PROBLEM TO THE AVIATION INDUSTRY.

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