A B747-200 flight crew experienced compressor stall in #2 engine on takeoff. They declared an emergency and returned to departure airport.

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Attributes
ACN	716315
Time
Date	200611
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zzz.tracon
State Reference	US
Altitude	msl single value : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : zzz.tracon tower : zzz.tower
Operator	common carrier : air carrier
Make Model Name	B747-200
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 296 flight time total : 14960 flight time type : 296
ASRS Report	716315
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 210 flight time total : 7000 flight time type : 850
ASRS Report	716316
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : landed in emergency condition flight crew : declared emergency other

Narrative:

During climb out from ZZZ the #2 engine had a severe compressor stall climbing through 12000 ft MSL. The aircraft was climbing at 320 KTS in a steady climb. The thrust lever was retarded to the 'closed' position. Flight crew could feel a slight vibration from the left side of the aircraft and did a precautionary shutdown of the #2 engine by selecting the start lever to 'cutoff' (fuel chop). Emergency was declared. Fuel was dumped to landing weight and an uneventful return to ZZZ was made.

Original NASA ASRS Text

Title: A B747-200 FLT CREW EXPERIENCED COMPRESSOR STALL IN #2 ENG ON TKOF. THEY DECLARED AN EMER AND RETURNED TO DEP ARPT.

Narrative: DURING CLBOUT FROM ZZZ THE #2 ENG HAD A SEVERE COMPRESSOR STALL CLBING THROUGH 12000 FT MSL. THE ACFT WAS CLBING AT 320 KTS IN A STEADY CLB. THE THRUST LEVER WAS RETARDED TO THE 'CLOSED' POS. FLT CREW COULD FEEL A SLIGHT VIBRATION FROM THE L SIDE OF THE ACFT AND DID A PRECAUTIONARY SHUTDOWN OF THE #2 ENG BY SELECTING THE START LEVER TO 'CUTOFF' (FUEL CHOP). EMER WAS DECLARED. FUEL WAS DUMPED TO LNDG WT AND AN UNEVENTFUL RETURN TO ZZZ WAS MADE.

Data retrieved from NASA's ASRS site as of January 2009 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.