Narrative:

I was receiving TA's and vectors to felts field from spokane approach. Being unfamiliar with the area, I asked about the traffic pattern at felts and was told to expect right traffic for runway 21R at 3500 ft (1500 ft AGL) because of a bluff near the airport. Approach told me to contact tower and give my position. I did and gave them long right downwind for the right. Tower said to report downwind. As I neared the airport, I saw that the bluff was quite close and nearly as high as the pattern altitude. There were also towers on top. I was concerned because the ht and closeness of the hill made my downwind too high and close in for a good approach. While I was sorting through this, I failed to report downwind. As I turned base and final, I concentrated on maintaining control and getting down. I overshot the final (extended runway centerline) and turned back to it. I was still a little high and landed a bit long (but uneventfully). As I rolled out, the tower told me I had failed to report downwind and had not been cleared to land. He was right. The distrs of the nonstandard pattern had preoccupied my thoughts and caused me to fail to report and fail to notice the lack of landing clearance.

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Original NASA ASRS Text

Title: UNAUTH LNDG AFTER NON ADHERENCE TO ATC INSTRUCTION.

Narrative: I WAS RECEIVING TA'S AND VECTORS TO FELTS FIELD FROM SPOKANE APCH. BEING UNFAMILIAR WITH THE AREA, I ASKED ABOUT THE TFC PATTERN AT FELTS AND WAS TOLD TO EXPECT R TFC FOR RWY 21R AT 3500 FT (1500 FT AGL) BECAUSE OF A BLUFF NEAR THE ARPT. APCH TOLD ME TO CONTACT TWR AND GIVE MY POS. I DID AND GAVE THEM LONG R DOWNWIND FOR THE R. TWR SAID TO RPT DOWNWIND. AS I NEARED THE ARPT, I SAW THAT THE BLUFF WAS QUITE CLOSE AND NEARLY AS HIGH AS THE PATTERN ALT. THERE WERE ALSO TWRS ON TOP. I WAS CONCERNED BECAUSE THE HT AND CLOSENESS OF THE HILL MADE MY DOWNWIND TOO HIGH AND CLOSE IN FOR A GOOD APCH. WHILE I WAS SORTING THROUGH THIS, I FAILED TO RPT DOWNWIND. AS I TURNED BASE AND FINAL, I CONCENTRATED ON MAINTAINING CTL AND GETTING DOWN. I OVERSHOT THE FINAL (EXTENDED RWY CTRLINE) AND TURNED BACK TO IT. I WAS STILL A LITTLE HIGH AND LANDED A BIT LONG (BUT UNEVENTFULLY). AS I ROLLED OUT, THE TWR TOLD ME I HAD FAILED TO RPT DOWNWIND AND HAD NOT BEEN CLRED TO LAND. HE WAS RIGHT. THE DISTRS OF THE NONSTANDARD PATTERN HAD PREOCCUPIED MY THOUGHTS AND CAUSED ME TO FAIL TO RPT AND FAIL TO NOTICE THE LACK OF LNDG CLRNC.

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.