Narrative:

The airplane owner/salesman was demonstrating the airplane to my company for potential sale. He was in the right seat, and I was in the left. I flew the airplane as well as handled the radio's, also testing the systems and avionics to insure that they were working and not in need of repair. The owner 'coached' me as to power settings and other operational procedures. Approach cleared us for a visual to runway 8R, then handed us off to tower. I set the communication radio to what I thought was tower frequency, and broadcast my position while I configured the airplane for landing and coupled the flight director and autoplt to the ILS to check it's operation. The owner stated that he thought we were 'really high,' and we added more flaps and busied ourselves with landing the airplane. We both thought we had heard a landing clearance after my transmission. After landing, we told the tower of our intentions as we turned off the runway, and, hearing nothing, changed over to the ground frequency. The ground controller told us we had landed without clearance and that tower had wanted us to expedite clearing the runway and had to send the aircraft behind us around because we didn't respond to his transmission. The other pilot and I couldn't believe it, but as we examined our radio's, it became apparent that the tower frequency was missed by one digit. In the busy time during the frequency change, I had apparently broadcast on the wrong frequency and read back a landing clearance I hadn't heard! Upon landing we called the tower and explained the mix up. Observations: I was handling too many tasks in flying, handling the radio's, and checking out the airplane's many systems. I should have let the owner-pilot handle the communication and navigation radios. When things got busy, a mistake was made because of diverted attention and assumptions about communications.

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Original NASA ASRS Text

Title: AN SMT LANDED WITHOUT CLRNC.

Narrative: THE AIRPLANE OWNER/SALESMAN WAS DEMONSTRATING THE AIRPLANE TO MY COMPANY FOR POTENTIAL SALE. HE WAS IN THE R SEAT, AND I WAS IN THE L. I FLEW THE AIRPLANE AS WELL AS HANDLED THE RADIO'S, ALSO TESTING THE SYSTEMS AND AVIONICS TO INSURE THAT THEY WERE WORKING AND NOT IN NEED OF REPAIR. THE OWNER 'COACHED' ME AS TO PWR SETTINGS AND OTHER OPERATIONAL PROCS. APCH CLRED US FOR A VISUAL TO RWY 8R, THEN HANDED US OFF TO TWR. I SET THE COM RADIO TO WHAT I THOUGHT WAS TWR FREQ, AND BROADCAST MY POS WHILE I CONFIGURED THE AIRPLANE FOR LNDG AND COUPLED THE FLT DIRECTOR AND AUTOPLT TO THE ILS TO CHK IT'S OP. THE OWNER STATED THAT HE THOUGHT WE WERE 'REALLY HIGH,' AND WE ADDED MORE FLAPS AND BUSIED OURSELVES WITH LNDG THE AIRPLANE. WE BOTH THOUGHT WE HAD HEARD A LNDG CLRNC AFTER MY XMISSION. AFTER LNDG, WE TOLD THE TWR OF OUR INTENTIONS AS WE TURNED OFF THE RWY, AND, HEARING NOTHING, CHANGED OVER TO THE GND FREQ. THE GND CTLR TOLD US WE HAD LANDED WITHOUT CLRNC AND THAT TWR HAD WANTED US TO EXPEDITE CLRING THE RWY AND HAD TO SEND THE ACFT BEHIND US AROUND BECAUSE WE DIDN'T RESPOND TO HIS XMISSION. THE OTHER PLT AND I COULDN'T BELIEVE IT, BUT AS WE EXAMINED OUR RADIO'S, IT BECAME APPARENT THAT THE TWR FREQ WAS MISSED BY ONE DIGIT. IN THE BUSY TIME DURING THE FREQ CHANGE, I HAD APPARENTLY BROADCAST ON THE WRONG FREQ AND READ BACK A LNDG CLRNC I HADN'T HEARD! UPON LNDG WE CALLED THE TWR AND EXPLAINED THE MIX UP. OBSERVATIONS: I WAS HANDLING TOO MANY TASKS IN FLYING, HANDLING THE RADIO'S, AND CHKING OUT THE AIRPLANE'S MANY SYSTEMS. I SHOULD HAVE LET THE OWNER-PLT HANDLE THE COM AND NAV RADIOS. WHEN THINGS GOT BUSY, A MISTAKE WAS MADE BECAUSE OF DIVERTED ATTN AND ASSUMPTIONS ABOUT COMS.

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.