Narrative:

The flight from charlotte to new york was most routine until nearly concluding the lda-a final approach course -- lga. At a point approximately 3 mi from the runway threshold we were instructed to 'go around' as a result of inadequate wake turbulence separation from the departure of a heavy jet on intersecting runway 31. As the power levers advanced to the appropriate toga settings the right engine reacted with a series of violent compressor stalls. As normal flight operations were significantly impacted (by intense ctlability bucking and buffeting), I elected to immediately declare an emergency and specifically requested stand by emergency equipment. There was significant airborne traffic around us. We climbed slightly above go around altitude with a TCASII alert. Traffic was visually sighted. As diagnostic procedures were instituted we stabilized the engine to within normal operating parameters -- resultant thrust was more than adequate for a normal 2 engine landing (even considering another possible go around) and thus negating an in-flight engine shutdown. Passenger were notified of situation, landing was normal, engine was shut down while proceeding to gate.

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Original NASA ASRS Text

Title: EMER DECLARED AFTER ACFT MLG EXPERIENCES A SERIES OF VIOLENT COMPRESSOR STALLS ON GAR PROC.

Narrative: THE FLT FROM CHARLOTTE TO NEW YORK WAS MOST ROUTINE UNTIL NEARLY CONCLUDING THE LDA-A FINAL APCH COURSE -- LGA. AT A POINT APPROX 3 MI FROM THE RWY THRESHOLD WE WERE INSTRUCTED TO 'GAR' AS A RESULT OF INADEQUATE WAKE TURB SEPARATION FROM THE DEP OF A HVY JET ON INTERSECTING RWY 31. AS THE PWR LEVERS ADVANCED TO THE APPROPRIATE TOGA SETTINGS THE R ENG REACTED WITH A SERIES OF VIOLENT COMPRESSOR STALLS. AS NORMAL FLT OPS WERE SIGNIFICANTLY IMPACTED (BY INTENSE CTLABILITY BUCKING AND BUFFETING), I ELECTED TO IMMEDIATELY DECLARE AN EMER AND SPECIFICALLY REQUESTED STAND BY EMER EQUIP. THERE WAS SIGNIFICANT AIRBORNE TFC AROUND US. WE CLBED SLIGHTLY ABOVE GAR ALT WITH A TCASII ALERT. TFC WAS VISUALLY SIGHTED. AS DIAGNOSTIC PROCS WERE INSTITUTED WE STABILIZED THE ENG TO WITHIN NORMAL OPERATING PARAMETERS -- RESULTANT THRUST WAS MORE THAN ADEQUATE FOR A NORMAL 2 ENG LNDG (EVEN CONSIDERING ANOTHER POSSIBLE GAR) AND THUS NEGATING AN INFLT ENG SHUTDOWN. PAX WERE NOTIFIED OF SIT, LNDG WAS NORMAL, ENG WAS SHUT DOWN WHILE PROCEEDING TO GATE.

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.