ACR MLG WING STRUCK SVC TRUCK DURING PUSH BACK FROM GATE.

Narrative

PRIOR TO PUSH BACK OF A B737 FROM SJC TO RAMP THE COCKPIT AND GND CREW (1 MAN) COMMUNICATED AND THE RESPONSE AND CHALLENGE WAS COMPLETED. GND CREW DID A VISUAL CLRING OF ACFT AND COCKPIT ADVISED GND CTL OF PUSH. APPROX 30 SECONDS INTO THE PUSH BACK THE ACFT MADE CONTACT WITH A FOOD SVC TRUCK WITH THE L WING. THE TRUCK WAS TIPPED ON ITS SIDE AND ACFT L TRAILING EDGE OF WING DAMAGED. FIRE DEPT ALERTED AND A NORMAL DEPLANING TOOK PLACE. THE PROB APPEARS TO BE TWO-FOLD. BEING THAT MANPOWER CUT BACKS DID NOT ALLOW FOR WING WALKER NOR DID THE DRIVER OF THE TRUCK APPEAR TO HAVE KNOWLEDGE OF THE ACFT MOVEMENT; THE TRUCK APPARENTLY DROVE INTO POS WAITING FOR ANOTHER ACFT BTWN THE TIME OF THE VISUAL CLRING AND THE PUSH. ALSO THE TRUCK PARKED IN AN ACFT MOVEMENT ZONE. THE OUTCOME AS TO HOW THIS TOOK PLACE MAY ALSO BE NOTED AS ON TIME; ON TIME VERSUS SAFETY; SAFETY. WE MUST INSURE THAT AS TIME IS COMPRESSED; WE DECREASE OUR AWARENESS AND WITHOUT BACKUP (2 MAN) WING WALKER; ETC. ANOTHER AREA OF CONCERN IS THE GND CREW DID NOT KEEP THE COCKPIT IN THE LOOP AS TO THE EXTENT OF THE CONTACT. SHOULD A FUEL SPILL OR FIRE HAVE RESULTED; HAVE THE FIRST INDICATION WOULD HAVE BEEN FROM THE CABIN CREW AND THAT MIGHT BE TOO LATE. ALSO FIRE DEPT SHOULD HAVE DIRECT COM TO COCKPIT AS TO ADVISE THE (BEST) SIDE TO EVAC SHOULD IT BECOME NECESSARY.