Narrative:

I departed cottonwood, az, runway 32 at XA40. I talked to another departing aircraft in front of me as he was in-flight. He responded to my comments. My radios were loud and clear. I was in-flight for 1.8 hours. Upon returning to cottonwood area from the north I called unicom approximately 7 mi out to inform my intentions to enter traffic pattern for right traffic landing runway 32. I again called in the blind prior to entering pattern with same information, right landing runway 32. No response from unicom in pattern. I called in blind base leg and final runway 32. After landing, while tying down the aircraft, FBO came in fuel truck, wanting to know why I did not report my intentions as traffic had changed to using runway 14 while I was in-flight. I landed against traffic, causing another aircraft landing to go around. While flying this civil air patrol sortie, another private pilot, retired, was in the right seat. Another private pilot was in rear seat. All 3 of us saw hand gliders northwest of airport but no other aircraft in pattern. Again, while tying down, after talking to the FBO, a young fellow appeared saying that he was a student pilot, wanting to know what happened. I was surprised this his CFI had not questioned me. The student stated that he did have to go around for landing. A witness on the ground that saw both aircraft told me that I was on the runway and turning off before other aircraft approached the threshold or numbers. As I had no response from unicom, thinking that he was pumping gas, I landed on 32, the runway I departed from. That is used most for noise abatement. My radios had failed while in-flight and I did not look at windsock.

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Original NASA ASRS Text

Title: NORDO TFC LANDS AT NON TWR ARPT UNICOM AND CAUSES ANOTHER SMA TO GAR DURING APCH IN OPPOSITE DIRECTION UNAUTHORIZED LNDG. WRONG RWY LNDG.

Narrative: I DEPARTED COTTONWOOD, AZ, RWY 32 AT XA40. I TALKED TO ANOTHER DEPARTING ACFT IN FRONT OF ME AS HE WAS INFLT. HE RESPONDED TO MY COMMENTS. MY RADIOS WERE LOUD AND CLR. I WAS INFLT FOR 1.8 HRS. UPON RETURNING TO COTTONWOOD AREA FROM THE N I CALLED UNICOM APPROX 7 MI OUT TO INFORM MY INTENTIONS TO ENTER TFC PATTERN FOR R TFC LNDG RWY 32. I AGAIN CALLED IN THE BLIND PRIOR TO ENTERING PATTERN WITH SAME INFO, R LNDG RWY 32. NO RESPONSE FROM UNICOM IN PATTERN. I CALLED IN BLIND BASE LEG AND FINAL RWY 32. AFTER LNDG, WHILE TYING DOWN THE ACFT, FBO CAME IN FUEL TRUCK, WANTING TO KNOW WHY I DID NOT RPT MY INTENTIONS AS TFC HAD CHANGED TO USING RWY 14 WHILE I WAS INFLT. I LANDED AGAINST TFC, CAUSING ANOTHER ACFT LNDG TO GAR. WHILE FLYING THIS CIVIL AIR PATROL SORTIE, ANOTHER PRIVATE PLT, RETIRED, WAS IN THE R SEAT. ANOTHER PRIVATE PLT WAS IN REAR SEAT. ALL 3 OF US SAW HAND GLIDERS NW OF ARPT BUT NO OTHER ACFT IN PATTERN. AGAIN, WHILE TYING DOWN, AFTER TALKING TO THE FBO, A YOUNG FELLOW APPEARED SAYING THAT HE WAS A STUDENT PLT, WANTING TO KNOW WHAT HAPPENED. I WAS SURPRISED THIS HIS CFI HAD NOT QUESTIONED ME. THE STUDENT STATED THAT HE DID HAVE TO GAR FOR LNDG. A WITNESS ON THE GND THAT SAW BOTH ACFT TOLD ME THAT I WAS ON THE RWY AND TURNING OFF BEFORE OTHER ACFT APCHED THE THRESHOLD OR NUMBERS. AS I HAD NO RESPONSE FROM UNICOM, THINKING THAT HE WAS PUMPING GAS, I LANDED ON 32, THE RWY I DEPARTED FROM. THAT IS USED MOST FOR NOISE ABATEMENT. MY RADIOS HAD FAILED WHILE INFLT AND I DID NOT LOOK AT WINDSOCK.

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.