Narrative:

Ksjc, new runway 30R under construction. Cement trucks cross taxiway routinely. Turning off taxiway Y, crossing runway 30R to hold short runway 30L, a cardboard paper bag of concrete mix blew into the number 2 engine. I heard a sound and checked the engine instruments. Number 2 N1 was reading 18 percent while number 1 was reading 21 percent. I didn't notice any engine reading that made me suspect a problem, but I noted the N1 readings. Next a following aircraft reported on ground frequency that we had sucked in a bag and that smoke and debris came out of the engine. I held position, called maintenance who directed that we return to gate for engine inspection. Large portions of bag were still in engine after shutdown at gate. Maintenance inspected engine and cleared it for flight. No problems noted on engine during subsequent two flights. Please notify city that we took a 1-HOUR delay because they had concrete bags blowing around the ramp. FOD is a hazard at san jose. Callback conversation with reporter revealed the following information: the PIC stated that he wanted to make certain that there would be no other occurrences such as this one at sjc. He had conferred with dispatch and maintenance control regarding the need for the delay and inspection. No other follow up information is available to him. Other traffic departing sjc was routed around his aircraft for intersection takeoffs while he was waiting for taxi clearance back to the ramp.

Related reports:

Google
 

Original NASA ASRS Text

Title: A B-737-300 FLT RETURNS TO THE RAMP FOR AN ENGINE INSPECTION AFTER IT WAS REPORTED BY ANOTHER ACFT THAT THEIR NUMBER 2 ENGINE HAD INGESTED AN EMPTY CONCRETE MIX BAG DURING THEIR CROSSING RWY 30R AT SJC, CA.

Narrative: KSJC, NEW RWY 30R UNDER CONSTRUCTION. CEMENT TRUCKS CROSS TXWY ROUTINELY. TURNING OFF TXWY Y, CROSSING RWY 30R TO HOLD SHORT RWY 30L, A CARDBOARD PAPER BAG OF CONCRETE MIX BLEW INTO THE NUMBER 2 ENGINE. I HEARD A SOUND AND CHECKED THE ENGINE INSTRUMENTS. NUMBER 2 N1 WAS READING 18 PERCENT WHILE NUMBER 1 WAS READING 21 PERCENT. I DIDN'T NOTICE ANY ENGINE READING THAT MADE ME SUSPECT A PROBLEM, BUT I NOTED THE N1 READINGS. NEXT A FOLLOWING ACFT REPORTED ON GND FREQ THAT WE HAD SUCKED IN A BAG AND THAT SMOKE AND DEBRIS CAME OUT OF THE ENGINE. I HELD POSITION, CALLED MAINT WHO DIRECTED THAT WE RETURN TO GATE FOR ENGINE INSPECTION. LARGE PORTIONS OF BAG WERE STILL IN ENGINE AFTER SHUTDOWN AT GATE. MAINT INSPECTED ENGINE AND CLEARED IT FOR FLIGHT. NO PROBLEMS NOTED ON ENGINE DURING SUBSEQUENT TWO FLIGHTS. PLEASE NOTIFY CITY THAT WE TOOK A 1-HOUR DELAY BECAUSE THEY HAD CONCRETE BAGS BLOWING AROUND THE RAMP. FOD IS A HAZARD AT SAN JOSE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE PIC STATED THAT HE WANTED TO MAKE CERTAIN THAT THERE WOULD BE NO OTHER OCCURRENCES SUCH AS THIS ONE AT SJC. HE HAD CONFERRED WITH DISPATCH AND MAINT CTL REGARDING THE NEED FOR THE DELAY AND INSPECTION. NO OTHER FOLLOW UP INFORMATION IS AVAILABLE TO HIM. OTHER TRAFFIC DEPARTING SJC WAS ROUTED AROUND HIS ACFT FOR INTXN TKOFS WHILE HE WAS WAITING FOR TAXI CLRNC BACK TO THE RAMP.

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.