A B757-200 ACR FLC HAS COMPRESSOR STALLS ON THE L ENG DURING CLBOUT AND RETURN. DURING A POSTFLT INSPECTION LOOSE METAL WAS FOUND IN THE TAILPIPE.

Narrative

CLBING OUT FROM MCO AT APPROX 10000 FT; ACFT SUFFERED A COMPRESSOR STALL. ACFT WAS CLBING AT 250 KTS WHEN YAWED AND LOUD POPPING NOISE WAS HEARD. WAS PULLED BACK TO IDLE AND EGT WHICH HAD BEEN RISING; STABILIZED AT 590 DEGS C. WE COMPLETED THE ENG COMPRESSOR STALL CHKLIST AND REQUESTED RETURN TO MCO. AS PER OUR CHKLIST THE ENG WAS KEPT RUNNING AS NO ENG PARAMETERS WERE EXCEEDED. APPROPRIATE CHKLISTS WERE ACCOMPLISHED AND A VECTOR FOR VISUAL TO RWY 17 AT MCO WAS ACCEPTED. APPROX 2 MI OUT ON FINAL A SECOND COMPRESSOR STALL OCCURRED AND MINOR AMOUNT OF SMOKE WAS NOTED IN THE COCKPIT. THE FO QUICKLY CLOSED THE BLEED AND TURNED OFF THE L SIDE PACK. SMOKE IMMEDIATELY DISSIPATED. ACFT LANDED WITHOUT INCIDENT AND WAS SHUT DOWN AFTER EXITING RWY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE CAPT SAID THAT HE WAS FLYING ONE OF HIS AIRLINE'S NEWEST B757-200'S WHEN THE L ENG BEGAN TO COMPRESSOR STALL. HE RETARDED THE ENG TO IDLE AND DECIDED TO RETURN TO MCO. ON SHORT FINAL TO RWY 17 AS THE FLC SPOOLED THE L ENG UP FOR THE LNDG; THE COMPRESSOR STALLED AGAIN. THEY RETARDED THE L ENG TO IDLE AGAIN AND COMPLETED THE LNDG. AFTER THEY GOT BACK TO THE GATE; THE L ENG WAS SHUT DOWN DURING TAXI; MAINT PERSONNEL FOUND METAL BITS LAYING IN THE TAILPIPE. THE RPTR SAID THAT HE HAS NO MORE INFO ON WHAT HAD FAILED ON THE ENG. HE SAID THAT THE CREW HAD BEEN FAIRLY GENTLE WITH THE ENG BECAUSE OF THEIR LIGHT WT ON THIS FLT. THE FLC HAD USED REDUCED TKOF THRUST #1 AND REDUCED CLB THRUST #2 DURING THEIR TKOF AND DEP. HE FELT THAT THIS MAY HAVE ALLOWED THE ENG TO STAY TOGETHER AS LONG AS IT DID.