B767 ingests birds on takeoff boi, declares emergency and returns to land.

Attributes
ACN	448029
Time
Date	199908
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : boi.airport
State Reference	ID
Altitude	agl single value : 30
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tower : boi.tower tower : crw.tower
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain
Qualification	pilot : atp
Experience	flight time total : 15000 flight time type : 3500
ASRS Report	448029
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical inflight encounter : birds other anomaly other
Independent Detector	other flight crewa
Resolutory Action	controller : provided flight assist controller : issued new clearance flight crew : declared emergency flight crew : landed in emergency condition flight crew : landed as precaution
Consequence	other other
Supplementary
Problem Areas	Environmental Factor Weather Flight Crew Human Performance
Primary Problem	Environmental Factor

Narrative:

Just after liftoff, birds were ingested through the right engine causing significant vibration. I reduced power until the vibration was minimal. Declared emergency, requested fire equipment stand by. Then notified cabin crew of the situation and requested extra heads up for possible problem on landing. I also notified passenger that we were returning to boi due to the engine vibration. I requested a downwind vector to return to boi for runway 28L localizer approach. We completed engine shutdown abnormal procedure, but kept the engine running at idle power. Landed at boi, cleared the runway, then shut the right engine down. Inspection of the engine showed we had ingested birds through the fan section of the right engine bending some fan blades. Engine temperatures and pressures remained normal throughout the leg. The engine remained intact.

Original NASA ASRS Text

Title: B767 INGESTS BIRDS ON TKOF BOI, DECLARES EMER AND RETURNS TO LAND.

Narrative: JUST AFTER LIFTOFF, BIRDS WERE INGESTED THROUGH THE R ENG CAUSING SIGNIFICANT VIBRATION. I REDUCED PWR UNTIL THE VIBRATION WAS MINIMAL. DECLARED EMER, REQUESTED FIRE EQUIP STAND BY. THEN NOTIFIED CABIN CREW OF THE SIT AND REQUESTED EXTRA HEADS UP FOR POSSIBLE PROB ON LNDG. I ALSO NOTIFIED PAX THAT WE WERE RETURNING TO BOI DUE TO THE ENG VIBRATION. I REQUESTED A DOWNWIND VECTOR TO RETURN TO BOI FOR RWY 28L LOC APCH. WE COMPLETED ENG SHUTDOWN ABNORMAL PROC, BUT KEPT THE ENG RUNNING AT IDLE PWR. LANDED AT BOI, CLRED THE RWY, THEN SHUT THE R ENG DOWN. INSPECTION OF THE ENG SHOWED WE HAD INGESTED BIRDS THROUGH THE FAN SECTION OF THE R ENG BENDING SOME FAN BLADES. ENG TEMPS AND PRESSURES REMAINED NORMAL THROUGHOUT THE LEG. THE ENG REMAINED INTACT.

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.