Narrative:

The captain shut the aircraft down and performed a post-flight inspection, then proceeded inside to operations to check the WX. I remained at the aircraft to finish up the paperwork and obtain the clearance for the next leg. I performed a preflight walk-around, as I do before each leg, and found nothing out of the ordinary. As I was listening to the ATIS at portland, before getting the clearance, I felt the plane move slightly. I looked outside immediately to see if the plane was struck by a veh. The big cart wheel was near the airstair door. I asked the driver if he hit the airplane. He said he may have struck the door, but he didn't know. I inspected the side of the aircraft and found nothing out of the ordinary. I proceeded to inform the captain of the incident. He too agreed it may have been the door. We inspected and tested the door and found nothing unusual. The decision was made that there was no damage and the flight would go as scheduled. It was my leg to fly. Captain started the engines. I taxied the airplane, flew, landed, and taxied it again. Nothing out of the ordinary was noted. I left the terminal at bos to supervise fueling, obtain the clearance and preflight the airplane for flight. During my preflight inspection, I discovered the bent propeller blade. I returned to the terminal and informed the captain. We returned to the plane, and after the captain examined the propeller, the plane was grounded and the flight was cancelled.

Related reports:

Google
 

Original NASA ASRS Text

Title: ACR SMT BUMPED BY GND VEHICLE. NO DAMAGE FOUND ON INSPECTION. FLEW ONE LEG, THEN DISCOVERED A BENT PROPELLER BLADE. ACFT GNDED.

Narrative: THE CAPT SHUT THE ACFT DOWN AND PERFORMED A POST-FLT INSPECTION, THEN PROCEEDED INSIDE TO OPS TO CHK THE WX. I REMAINED AT THE ACFT TO FINISH UP THE PAPERWORK AND OBTAIN THE CLRNC FOR THE NEXT LEG. I PERFORMED A PREFLT WALK-AROUND, AS I DO BEFORE EACH LEG, AND FOUND NOTHING OUT OF THE ORDINARY. AS I WAS LISTENING TO THE ATIS AT PORTLAND, BEFORE GETTING THE CLRNC, I FELT THE PLANE MOVE SLIGHTLY. I LOOKED OUTSIDE IMMEDIATELY TO SEE IF THE PLANE WAS STRUCK BY A VEH. THE BIG CART WHEEL WAS NEAR THE AIRSTAIR DOOR. I ASKED THE DRIVER IF HE HIT THE AIRPLANE. HE SAID HE MAY HAVE STRUCK THE DOOR, BUT HE DIDN'T KNOW. I INSPECTED THE SIDE OF THE ACFT AND FOUND NOTHING OUT OF THE ORDINARY. I PROCEEDED TO INFORM THE CAPT OF THE INCIDENT. HE TOO AGREED IT MAY HAVE BEEN THE DOOR. WE INSPECTED AND TESTED THE DOOR AND FOUND NOTHING UNUSUAL. THE DECISION WAS MADE THAT THERE WAS NO DAMAGE AND THE FLT WOULD GO AS SCHEDULED. IT WAS MY LEG TO FLY. CAPT STARTED THE ENGS. I TAXIED THE AIRPLANE, FLEW, LANDED, AND TAXIED IT AGAIN. NOTHING OUT OF THE ORDINARY WAS NOTED. I LEFT THE TERMINAL AT BOS TO SUPERVISE FUELING, OBTAIN THE CLRNC AND PREFLT THE AIRPLANE FOR FLT. DURING MY PREFLT INSPECTION, I DISCOVERED THE BENT PROP BLADE. I RETURNED TO THE TERMINAL AND INFORMED THE CAPT. WE RETURNED TO THE PLANE, AND AFTER THE CAPT EXAMINED THE PROP, THE PLANE WAS GNDED AND THE FLT WAS CANCELLED.

Data retrieved from NASA's ASRS site as of August 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.