Narrative:

ZZZ has a road that runs perpendicular to runway 19; about 550 ft from the displaced threshold of the runway. In addition; there is a line of trees that make the left side of the road not visible to aircraft on approach. The 'road crossing height;' based on a three (3) degree GS is only 30 ft. While on short final; a tractor trailer emerged from behind the tree line. An immediate go around was initiated; as it was felt that the 'passing' distance was going to be too close for comfort. A go around was executed; and the aircraft re-entered the pattern for another landing. After landing; pilots noticed tractor trailer stopped by the side of road; speaking with police. Pilots walked over to talk to the truck driver and police. Truck driver stated that he felt the aircraft go over; and thought that maybe the tires touched the top of his trailer. An inspection of the trailer; and aircraft; showed that this did not occur. Pilots spoke with FAA investigator; via phone; and it was determined that this was a 'non-event'. Truck driver departed; pilots stood around and spoke with police for a little while; and then departed. As a note; police were not called. Police officer happened to be driving by; and was waved down by truck driver; who was visibly shaken. The 'road crossing height' of this runway is very low; only 30 ft. Typical tractor trailer is approximately 12 ft. This only leaves 18 ft of clearance. However; in order to ensure this clearance; this pilot would like to make the following suggestions; in the interest of aviation safety. 1) put a remark in the AFD for this airport stating: low road crossing height; caution for large trucks. 2) there is no VASI/PAPI installed at this airport. Install a VASI/PAPI system set at about a 4 or 4.5 degree GS. 3) cut down those darned trees that obscure the left side of the road.

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Original NASA ASRS Text

Title: C206 PLT RPTS NEAR COLLISION WITH TRACTOR TRAILER RIG ON ROAD RUNNING PERPENDICULAR TO APCH END OF RWY 19 AT ZZZ.

Narrative: ZZZ HAS A ROAD THAT RUNS PERPENDICULAR TO RWY 19; ABOUT 550 FT FROM THE DISPLACED THRESHOLD OF THE RUNWAY. IN ADDITION; THERE IS A LINE OF TREES THAT MAKE THE L SIDE OF THE ROAD NOT VISIBLE TO ACFT ON APCH. THE 'ROAD CROSSING HEIGHT;' BASED ON A THREE (3) DEG GS IS ONLY 30 FT. WHILE ON SHORT FINAL; A TRACTOR TRAILER EMERGED FROM BEHIND THE TREE LINE. AN IMMEDIATE GAR WAS INITIATED; AS IT WAS FELT THAT THE 'PASSING' DISTANCE WAS GOING TO BE TOO CLOSE FOR COMFORT. A GAR WAS EXECUTED; AND THE ACFT RE-ENTERED THE PATTERN FOR ANOTHER LNDG. AFTER LNDG; PLTS NOTICED TRACTOR TRAILER STOPPED BY THE SIDE OF ROAD; SPEAKING WITH POLICE. PLTS WALKED OVER TO TALK TO THE TRUCK DRIVER AND POLICE. TRUCK DRIVER STATED THAT HE FELT THE ACFT GO OVER; AND THOUGHT THAT MAYBE THE TIRES TOUCHED THE TOP OF HIS TRAILER. AN INSPECTION OF THE TRAILER; AND ACFT; SHOWED THAT THIS DID NOT OCCUR. PLTS SPOKE WITH FAA INVESTIGATOR; VIA PHONE; AND IT WAS DETERMINED THAT THIS WAS A 'NON-EVENT'. TRUCK DRIVER DEPARTED; PLTS STOOD AROUND AND SPOKE WITH POLICE FOR A LITTLE WHILE; AND THEN DEPARTED. AS A NOTE; POLICE WERE NOT CALLED. POLICE OFFICER HAPPENED TO BE DRIVING BY; AND WAS WAVED DOWN BY TRUCK DRIVER; WHO WAS VISIBLY SHAKEN. THE 'ROAD CROSSING HEIGHT' OF THIS RWY IS VERY LOW; ONLY 30 FT. TYPICAL TRACTOR TRAILER IS APPROX 12 FT. THIS ONLY LEAVES 18 FT OF CLRNC. HOWEVER; IN ORDER TO ENSURE THIS CLRNC; THIS PLT WOULD LIKE TO MAKE THE FOLLOWING SUGGESTIONS; IN THE INTEREST OF AVIATION SAFETY. 1) PUT A REMARK IN THE AFD FOR THIS ARPT STATING: LOW ROAD CROSSING HEIGHT; CAUTION FOR LARGE TRUCKS. 2) THERE IS NO VASI/PAPI INSTALLED AT THIS ARPT. INSTALL A VASI/PAPI SYSTEM SET AT ABOUT A 4 OR 4.5 DEG GS. 3) CUT DOWN THOSE DARNED TREES THAT OBSCURE THE L SIDE OF THE ROAD.

Data retrieved from NASA's ASRS site as of January 2009 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.