Narrative:

While in a climbing right turn after takeoff, the #1 engine compressor stalled. #1 power lever was retarded immediately. All INS were within limits. A decision was made to reduce power to idle on the #1 engine and declare and emergency and return to slc for a single engine (1 engine in idle) landing, as a precaution. That #1 engine may have suffered internal damage. Landing was normal and #1 engine shut down after clearing runway. While passenger were deplaning 1 passenger told the F/a that he had observed a bird enter the engine and then saw a fireball. Maintenance visually inspected and borescoped engine but found no damage.

Google
 

Original NASA ASRS Text

Title: MLG ON INITIAL CLIMB HEARD LOUD BANG FROM #1 ENGINE. REDUCE POWER, RETURN TO LAND.

Narrative: WHILE IN A CLBING RIGHT TURN AFTER TKOF, THE #1 ENG COMPRESSOR STALLED. #1 PWR LEVER WAS RETARDED IMMEDIATELY. ALL INS WERE WITHIN LIMITS. A DECISION WAS MADE TO REDUCE PWR TO IDLE ON THE #1 ENG AND DECLARE AND EMER AND RETURN TO SLC FOR A SINGLE ENG (1 ENG IN IDLE) LNDG, AS A PRECAUTION. THAT #1 ENG MAY HAVE SUFFERED INTERNAL DAMAGE. LNDG WAS NORMAL AND #1 ENG SHUT DOWN AFTER CLRING RWY. WHILE PAX WERE DEPLANING 1 PAX TOLD THE F/A THAT HE HAD OBSERVED A BIRD ENTER THE ENG AND THEN SAW A FIREBALL. MAINT VISUALLY INSPECTED AND BORESCOPED ENG BUT FOUND NO DAMAGE.

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.