Narrative:

Aircraft was taxied into jfk, gate at domestic terminal. A food (?) truck was observed with a possible conflict with the left wing tip. The aircraft was stopped by the captain. Maintenance ground personnel provided a wing walker giving the thumbs up signal, whereby the captain continued taxiing the aircraft into the gate. All crew exited the aircraft and continued to the next flight assignment. We (the cockpit crew) were advised the next day that a wing tip had been struck.

Google
 

Original NASA ASRS Text

Title: ACR LGT L WING WAS STRUCK BY A FOOD TRUCK.

Narrative: ACFT WAS TAXIED INTO JFK, GATE AT DOMESTIC TERMINAL. A FOOD (?) TRUCK WAS OBSERVED WITH A POSSIBLE CONFLICT WITH THE L WING TIP. THE ACFT WAS STOPPED BY THE CAPT. MAINT GND PERSONNEL PROVIDED A WING WALKER GIVING THE THUMBS UP SIGNAL, WHEREBY THE CAPT CONTINUED TAXIING THE ACFT INTO THE GATE. ALL CREW EXITED THE ACFT AND CONTINUED TO THE NEXT FLT ASSIGNMENT. WE (THE COCKPIT CREW) WERE ADVISED THE NEXT DAY THAT A WING TIP HAD BEEN STRUCK.

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.