Narrative:

I was on an IFR flight plan to rap. I departed around XA15 VFR and picked my clearance up while airborne. The flight went well and I received clearance from ellsworth approach for the GPS 14 approach into rap. He cleared me to asuve at or above 5500 ft MSL then for the approach. When I activated the approach on the GNS 530 it somehow dropped asuve so I put in a direct to course to asuve then turned to the inbound course of 141 degrees and punched in direct to zudim. As I was approaching zudim; I looked up and saw the runway right before me; earlier than I expected. I took over visually and landed on runway 14. Upon landing on the centerline I lost directional control and exited the runway on the right onto the grass. No damage occurred either to the aircraft or to the runway lighting. Rap tower asked where I was and I told them I just landed and went off the runway onto the grass. They xferred me to ellsworth tower who told me to shut down the airplane; which I did. Shortly thereafter; I was greeted by multiple military personnel. After I and my airplane were cleared; I was told to start the engine and taxi back onto the runway and follow the truck to parking; which I did. For about the next 2 hours I was questioned by a number of people and filled out various forms. When that was finished I was granted permission to start the airplane and fly to rap; which I did. Upon reflecting how this happened; I have decided it was a chain of errors on my part. I had flown my airplane very little over the prior 3 months. I had become less than proficient with the GWS530 as well. Before departing; I was staying in a lodge that had no internet. Most of my flight planning takes place 24 hours prior to departure and I use the internet to check WX and charts as well as IAP's. I was not able to do this and did an abbreviated preparation after arriving at the airport since I had left all my charts in the aircraft. In my preparation I should have noticed ellsworth AFB next to the FAF approximately 5 mi northeast of rap. Had I done this; I would have avoided this embarrassing incident.

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Original NASA ASRS Text

Title: COMMERCIAL PILOT REPORTS LANDING AT RCA AND GOING OFF THE RWY WHILE ATTEMPTING TO LAND AT RAP.

Narrative: I WAS ON AN IFR FLT PLAN TO RAP. I DEPARTED AROUND XA15 VFR AND PICKED MY CLRNC UP WHILE AIRBORNE. THE FLT WENT WELL AND I RECEIVED CLRNC FROM ELLSWORTH APCH FOR THE GPS 14 APCH INTO RAP. HE CLRED ME TO ASUVE AT OR ABOVE 5500 FT MSL THEN FOR THE APCH. WHEN I ACTIVATED THE APCH ON THE GNS 530 IT SOMEHOW DROPPED ASUVE SO I PUT IN A DIRECT TO COURSE TO ASUVE THEN TURNED TO THE INBOUND COURSE OF 141 DEGS AND PUNCHED IN DIRECT TO ZUDIM. AS I WAS APCHING ZUDIM; I LOOKED UP AND SAW THE RWY RIGHT BEFORE ME; EARLIER THAN I EXPECTED. I TOOK OVER VISUALLY AND LANDED ON RWY 14. UPON LNDG ON THE CTRLINE I LOST DIRECTIONAL CTL AND EXITED THE RWY ON THE R ONTO THE GRASS. NO DAMAGE OCCURRED EITHER TO THE ACFT OR TO THE RWY LIGHTING. RAP TWR ASKED WHERE I WAS AND I TOLD THEM I JUST LANDED AND WENT OFF THE RWY ONTO THE GRASS. THEY XFERRED ME TO ELLSWORTH TWR WHO TOLD ME TO SHUT DOWN THE AIRPLANE; WHICH I DID. SHORTLY THEREAFTER; I WAS GREETED BY MULTIPLE MIL PERSONNEL. AFTER I AND MY AIRPLANE WERE CLRED; I WAS TOLD TO START THE ENG AND TAXI BACK ONTO THE RWY AND FOLLOW THE TRUCK TO PARKING; WHICH I DID. FOR ABOUT THE NEXT 2 HRS I WAS QUESTIONED BY A NUMBER OF PEOPLE AND FILLED OUT VARIOUS FORMS. WHEN THAT WAS FINISHED I WAS GRANTED PERMISSION TO START THE AIRPLANE AND FLY TO RAP; WHICH I DID. UPON REFLECTING HOW THIS HAPPENED; I HAVE DECIDED IT WAS A CHAIN OF ERRORS ON MY PART. I HAD FLOWN MY AIRPLANE VERY LITTLE OVER THE PRIOR 3 MONTHS. I HAD BECOME LESS THAN PROFICIENT WITH THE GWS530 AS WELL. BEFORE DEPARTING; I WAS STAYING IN A LODGE THAT HAD NO INTERNET. MOST OF MY FLT PLANNING TAKES PLACE 24 HRS PRIOR TO DEP AND I USE THE INTERNET TO CHK WX AND CHARTS AS WELL AS IAP'S. I WAS NOT ABLE TO DO THIS AND DID AN ABBREVIATED PREPARATION AFTER ARRIVING AT THE ARPT SINCE I HAD LEFT ALL MY CHARTS IN THE ACFT. IN MY PREPARATION I SHOULD HAVE NOTICED ELLSWORTH AFB NEXT TO THE FAF APPROX 5 MI NE OF RAP. HAD I DONE THIS; I WOULD HAVE AVOIDED THIS EMBARRASSING INCIDENT.

Data retrieved from NASA's ASRS site as of May 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.