A320 crew had a series of #2 engine compressor stalls in ZBW class east airspace.

Attributes
ACN	571144
Time
Date	200301
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	msl single value : 14000
Aircraft 1
Controlling Facilities	artcc : zbw.artcc
Operator	common carrier : air carrier
Make Model Name	A320
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 type : 147
ASRS Report	571144
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Experience	flight time type : 992
ASRS Report	571142
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : epr other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist controller : issued new clearance flight crew : landed in emergency condition flight crew : declared emergency flight crew : diverted to another airport other
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On departure from boston, climbing through 14000 ft, experienced a series of compressor stalls on the #2 engine. EPR surged from climb power to idle several times. All other engine parameters remained within limits. The #2 throttle was retarded to idle and compressor stalls ceased. The throttle was then returned slowly to 1.10 EPR where compressor stalls once again returned. An emergency was declared, the flight attendants briefed and given a cabin advisory. Returned to boston with the #2 engine operating and at idle thrust. Subsequent visual approach and landing to runway 22L were normal and uneventful.

Original NASA ASRS Text

Title: A320 CREW HAD A SERIES OF #2 ENG COMPRESSOR STALLS IN ZBW CLASS E AIRSPACE.

Narrative: ON DEP FROM BOSTON, CLBING THROUGH 14000 FT, EXPERIENCED A SERIES OF COMPRESSOR STALLS ON THE #2 ENG. EPR SURGED FROM CLB PWR TO IDLE SEVERAL TIMES. ALL OTHER ENG PARAMETERS REMAINED WITHIN LIMITS. THE #2 THROTTLE WAS RETARDED TO IDLE AND COMPRESSOR STALLS CEASED. THE THROTTLE WAS THEN RETURNED SLOWLY TO 1.10 EPR WHERE COMPRESSOR STALLS ONCE AGAIN RETURNED. AN EMER WAS DECLARED, THE FLT ATTENDANTS BRIEFED AND GIVEN A CABIN ADVISORY. RETURNED TO BOSTON WITH THE #2 ENG OPERATING AND AT IDLE THRUST. SUBSEQUENT VISUAL APCH AND LNDG TO RWY 22L WERE NORMAL AND UNEVENTFUL.

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.