Narrative:

Deicing pad, engines shut down. Truck hit trailing edge of wing. Knocked 1/4' wide by 3' long piece of honeycomb off flying tab. Passenger saw incident and notified cockpit. Captain and first officer had to take blood and urine test.

Google
 

Original NASA ASRS Text

Title: MLG AT DE-ICING PAD STRUCK BY TRUCK. KNOCKED 3' PIECE OF HONEYCOMB OFF.

Narrative: DEICING PAD, ENGS SHUT DOWN. TRUCK HIT TRAILING EDGE OF WING. KNOCKED 1/4' WIDE BY 3' LONG PIECE OF HONEYCOMB OFF FLYING TAB. PAX SAW INCIDENT AND NOTIFIED COCKPIT. CAPT AND F/O HAD TO TAKE BLOOD AND URINE TEST.

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.