Narrative:

I was approaching lam for final on runway 27. I had already received the AWOS at lam and had changed frequencys to what I thought was 123.0. As I approached the field and at the distances reported above; I noticed an airplane aborting a takeoff about 1000 ft from the end of the runway. I immediately set up the airplane to go around. I scanned my radio and noticed that it was on '123.something' but not 123.0. I immediately changed the correct frequency and called again in the blind that I was going around. The aborted plane answered and I apologized for my error. I went around while the other plane taxied back to the run-up area. I told him that I would hold outside the area and wait for his takeoff but he said that he needed to check his airplane as he had to make an abrupt stop. I landed and he was inspecting his airplane. As I shut down he was starting his engine. As far as I can tell; there is no damage to either aircraft. The other pilot did have to hit his brakes hard to stop before the end of the runway. My error was not checking the radio for the proper unicom frequency 123.0. Additionally; I was focused on the end of the runway and did not scan the length of the runway as I turned final approach. Lam is 1-WAY in (runway 27) and 1-WAY out (runway 9).

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Original NASA ASRS Text

Title: PA28 PLT MAKES APCH TO UNCTLED FIELD UTILIZING WRONG UNICOM FREQ. PLT ON RWY ABORTS TKOF AFTER NOTICING TFC OPPOSITE DIRECTION ON FINAL.

Narrative: I WAS APCHING LAM FOR FINAL ON RWY 27. I HAD ALREADY RECEIVED THE AWOS AT LAM AND HAD CHANGED FREQS TO WHAT I THOUGHT WAS 123.0. AS I APCHED THE FIELD AND AT THE DISTANCES RPTED ABOVE; I NOTICED AN AIRPLANE ABORTING A TKOF ABOUT 1000 FT FROM THE END OF THE RWY. I IMMEDIATELY SET UP THE AIRPLANE TO GO AROUND. I SCANNED MY RADIO AND NOTICED THAT IT WAS ON '123.SOMETHING' BUT NOT 123.0. I IMMEDIATELY CHANGED THE CORRECT FREQ AND CALLED AGAIN IN THE BLIND THAT I WAS GOING AROUND. THE ABORTED PLANE ANSWERED AND I APOLOGIZED FOR MY ERROR. I WENT AROUND WHILE THE OTHER PLANE TAXIED BACK TO THE RUN-UP AREA. I TOLD HIM THAT I WOULD HOLD OUTSIDE THE AREA AND WAIT FOR HIS TKOF BUT HE SAID THAT HE NEEDED TO CHK HIS AIRPLANE AS HE HAD TO MAKE AN ABRUPT STOP. I LANDED AND HE WAS INSPECTING HIS AIRPLANE. AS I SHUT DOWN HE WAS STARTING HIS ENG. AS FAR AS I CAN TELL; THERE IS NO DAMAGE TO EITHER ACFT. THE OTHER PLT DID HAVE TO HIT HIS BRAKES HARD TO STOP BEFORE THE END OF THE RWY. MY ERROR WAS NOT CHKING THE RADIO FOR THE PROPER UNICOM FREQ 123.0. ADDITIONALLY; I WAS FOCUSED ON THE END OF THE RWY AND DID NOT SCAN THE LENGTH OF THE RWY AS I TURNED FINAL APCH. LAM IS 1-WAY IN (RWY 27) AND 1-WAY OUT (RWY 9).

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.