An S80 flight is mandated to return land after the crew felt what was determined to be a compressor stall on the starboard engine after takeoff from dfw, tx.

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Attributes
ACN	525252
Time
Date	200109
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	msl single value : 4300
Environment
Light	Night
Aircraft 1
Controlling Facilities	tracon : d10.tracon
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
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
ASRS Report	525252
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : eng gauges other flight crewa other flight crewb other other : cab 3
Resolutory Action	controller : provided flight assist controller : issued new clearance flight crew : diverted to another airport flight crew : landed in emergency condition flight crew : declared emergency other
Consequence	other other other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

We departed dfw enroute to smf. Approximately 4 min into the flight climbing through 4300 ft we heard a very loud bang and felt a very hard abrupt kick from the right side of the aircraft. We didn't know if we had hit something of if we had experienced a compressor stall. The first officer noticed a momentary fluctuation of the right N1 and EPR gauges, then all engine instruments operated normally. I disconnected the autothrottle, reduced power and leveled off at 5000 ft. The flight attendant's reported hearing a very loud bang from the right side. I told them we would be returning to dfw, to prepare the cabin for landing. Not knowing the extent of damage to the engine or airframe, if the aircraft would remain airworthy we felt unable to continue the flight as planned. We declared an emergency, requested vectors to runway 18R, and to have arff standing by. We made a normal smooth landing at a weight of 139200 pounds. We were inspected by dfw fire chief with a heat imaging camera. No fires or hot spots were detected so we elected to taxi to the gate to deplane the passengers.

Original NASA ASRS Text

Title: AN S80 FLT IS MANDATED TO RETURN LAND AFTER THE CREW FELT WHAT WAS DETERMINED TO BE A COMPRESSOR STALL ON THE STARBOARD ENGINE AFTER TKOF FROM DFW, TX.

Narrative: WE DEPARTED DFW ENROUTE TO SMF. APPROX 4 MIN INTO THE FLT CLIMBING THROUGH 4300 FT WE HEARD A VERY LOUD BANG AND FELT A VERY HARD ABRUPT KICK FROM THE RIGHT SIDE OF THE ACFT. WE DIDN'T KNOW IF WE HAD HIT SOMETHING OF IF WE HAD EXPERIENCED A COMPRESSOR STALL. THE FO NOTICED A MOMENTARY FLUCTUATION OF THE R N1 AND EPR GAUGES, THEN ALL ENG INSTRUMENTS OPERATED NORMALLY. I DISCONNECTED THE AUTOTHROTTLE, REDUCED POWER AND LEVELED OFF AT 5000 FT. THE FA'S REPORTED HEARING A VERY LOUD BANG FROM THE R SIDE. I TOLD THEM WE WOULD BE RETURNING TO DFW, TO PREPARE THE CABIN FOR LANDING. NOT KNOWING THE EXTENT OF DAMAGE TO THE ENG OR AIRFRAME, IF THE ACFT WOULD REMAIN AIRWORTHY WE FELT UNABLE TO CONTINUE THE FLT AS PLANNED. WE DECLARED AN EMERGENCY, REQUESTED VECTORS TO RWY 18R, AND TO HAVE ARFF STANDING BY. WE MADE A NORMAL SMOOTH LANDING AT A WT OF 139200 LBS. WE WERE INSPECTED BY DFW FIRE CHIEF WITH A HEAT IMAGING CAMERA. NO FIRES OR HOT SPOTS WERE DETECTED SO WE ELECTED TO TAXI TO THE GATE TO DEPLANE THE PASSENGERS.

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.