Narrative:

After a 5 1/2 hour flight, I approached casa grande (cgz) from the east and received ATIS. I called my position and intentions at 6 mi and 3 mi and 1 mi out on unicom frequency 122.7. I crossed at midfield and noticed personnel at the far east end of runway 23. I checked for X's on the runway and saw none. There were no xmissions on the unicom other than aircraft on practice approachs. I made a normal approach offset to the right on final until past the personnel and landed well downfield on the last 1/2 of the runway, without incident at XA25. I was notified later that the airport was closed by NOTAM from XA00-XC00. I got my WX information from an internet/tv WX program that morning and did not call FSS. The airport supervisor said they called on the unicom that the airport was closed, but neither myself nor my observer heard any such transmission, nor did the personnel at the FBO. The FBO personnel also reported that neither they nor anyone else on the airport to their knowledge had been notified of the closure, and they had just seen an aircraft depart before my arrival. No X's had been put out on the runways and no information concerning the airport closure was broadcast on ATIS or unicom.

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Original NASA ASRS Text

Title: C208 PLT IS ACCUSED OF LNDG AT AN ARPT THAT WAS NOTAMED CLOSED.

Narrative: AFTER A 5 1/2 HR FLT, I APCHED CASA GRANDE (CGZ) FROM THE E AND RECEIVED ATIS. I CALLED MY POS AND INTENTIONS AT 6 MI AND 3 MI AND 1 MI OUT ON UNICOM FREQ 122.7. I CROSSED AT MIDFIELD AND NOTICED PERSONNEL AT THE FAR E END OF RWY 23. I CHKED FOR X'S ON THE RWY AND SAW NONE. THERE WERE NO XMISSIONS ON THE UNICOM OTHER THAN ACFT ON PRACTICE APCHS. I MADE A NORMAL APCH OFFSET TO THE R ON FINAL UNTIL PAST THE PERSONNEL AND LANDED WELL DOWNFIELD ON THE LAST 1/2 OF THE RWY, WITHOUT INCIDENT AT XA25. I WAS NOTIFIED LATER THAT THE ARPT WAS CLOSED BY NOTAM FROM XA00-XC00. I GOT MY WX INFO FROM AN INTERNET/TV WX PROGRAM THAT MORNING AND DID NOT CALL FSS. THE ARPT SUPVR SAID THEY CALLED ON THE UNICOM THAT THE ARPT WAS CLOSED, BUT NEITHER MYSELF NOR MY OBSERVER HEARD ANY SUCH XMISSION, NOR DID THE PERSONNEL AT THE FBO. THE FBO PERSONNEL ALSO RPTED THAT NEITHER THEY NOR ANYONE ELSE ON THE ARPT TO THEIR KNOWLEDGE HAD BEEN NOTIFIED OF THE CLOSURE, AND THEY HAD JUST SEEN AN ACFT DEPART BEFORE MY ARR. NO X'S HAD BEEN PUT OUT ON THE RWYS AND NO INFO CONCERNING THE ARPT CLOSURE WAS BROADCAST ON ATIS OR UNICOM.

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.