Foreign object ingestion damage bird.

Attributes
ACN	266919
Time
Date	199403
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dab
State Reference	FL
Altitude	agl bound lower : 0 agl bound upper : 50
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : dab
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : initial climbout : takeoff cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 150 flight time total : 8600 flight time type : 4500
ASRS Report	266919
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 104 flight time total : 4800 flight time type : 1696
ASRS Report	267067
Events
Anomaly	aircraft equipment problem : critical inflight encounter other other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Before takeoff on runway 25R at dab, notified by tower of some birds at opposite end of runway. During or just after liftoff encountered probable bird strike/ingestion to #1 engine. Engine maintained power, operated normally, and showed no abnormal engine instrument indications. However, engine vibration gauge showed fluctuations between 1-4. Vibration was also sensed in first officer control column. Vibration gauge indications reduced during climb out and remained steady between 2-3 during cruise flight. Indications went below 1 during engine idle conditions. Flight continued to destination (clt) normally. Noticed some vibration and noise during reverse thrust on landing. Arrival at gate confirmed bird strike/ingestion to #1 engine and subsequent damage to numerous fan blades. Supplemental information from acn 267067: our departure airport had limited runway length available and the aircraft was currently 7000 pounds in excess of maximum landing weight. Because of the high gross weight and stable engine operation the flight was continued to clt (destination) where an uneventful maximum landing weight landing was accomplished.

Original NASA ASRS Text

Title: FOREIGN OBJECT INGESTION DAMAGE BIRD.

Narrative: BEFORE TKOF ON RWY 25R AT DAB, NOTIFIED BY TWR OF SOME BIRDS AT OPPOSITE END OF RWY. DURING OR JUST AFTER LIFTOFF ENCOUNTERED PROBABLE BIRD STRIKE/INGESTION TO #1 ENG. ENG MAINTAINED PWR, OPERATED NORMALLY, AND SHOWED NO ABNORMAL ENG INST INDICATIONS. HOWEVER, ENG VIBRATION GAUGE SHOWED FLUCTUATIONS BTWN 1-4. VIBRATION WAS ALSO SENSED IN FO CTL COLUMN. VIBRATION GAUGE INDICATIONS REDUCED DURING CLBOUT AND REMAINED STEADY BTWN 2-3 DURING CRUISE FLT. INDICATIONS WENT BELOW 1 DURING ENG IDLE CONDITIONS. FLT CONTINUED TO DEST (CLT) NORMALLY. NOTICED SOME VIBRATION AND NOISE DURING REVERSE THRUST ON LNDG. ARR AT GATE CONFIRMED BIRD STRIKE/INGESTION TO #1 ENG AND SUBSEQUENT DAMAGE TO NUMEROUS FAN BLADES. SUPPLEMENTAL INFO FROM ACN 267067: OUR DEP ARPT HAD LIMITED RWY LENGTH AVAILABLE AND THE ACFT WAS CURRENTLY 7000 LBS IN EXCESS OF MAX LNDG WT. BECAUSE OF THE HIGH GROSS WT AND STABLE ENG OP THE FLT WAS CONTINUED TO CLT (DEST) WHERE AN UNEVENTFUL MAX LNDG WT LNDG WAS ACCOMPLISHED.

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.