Narrative:

Departed bowie airport (0f2) in VMC for plainview VOR via V278 for a stop at hale county (pvw). Around guthrie VOR the WX started to deteriorate rapidly. I turned south because the WX looked better and decided to stop at abernathy. About 30 DME from lubbock VOR at 8500 ft, I decided the WX was deteriorating to a point that I had to get on the ground. I was above a cloud cover in VFR conditions but unable to see the ground. I checked lubbock ATIS and they were reporting 800 ft ceiling and 10 mi visibility. The WX behind me was no better. I checked my GPS and it was saying 'no GPS coverage.' I found a large hole in the clouds and went under. The visibility was good but low ceilings. I headed for lubbock VOR on V102 and checked lubbock's ATIS to call the tower and confess my situation and ask for help. Before I was able to call the tower, I found myself in their airspace. I called the tower, told them my situation and location, and asked to land. Deteriorating WX. Loss of GPS coverage. Tried to troubleshoot problem too long. Stress level rising and misread VOR's CDI. After departing lubbock airport on may/xa/99, I found my GPS still inoperative. The problem with the GPS is the external antenna. I have a garmin 195 handheld and it works fine when removed from the aircraft yoke.

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Original NASA ASRS Text

Title: PVT PLT OF AN SEL SMA INADVERTENTLY ENTERED CLASS C AIRSPACE BEFORE OBTAINING A CLRNC FOR LNDG DUE TO DETERIORATING WX CONDITIONS AND DISORIENTATION.

Narrative: DEPARTED BOWIE ARPT (0F2) IN VMC FOR PLAINVIEW VOR VIA V278 FOR A STOP AT HALE COUNTY (PVW). AROUND GUTHRIE VOR THE WX STARTED TO DETERIORATE RAPIDLY. I TURNED S BECAUSE THE WX LOOKED BETTER AND DECIDED TO STOP AT ABERNATHY. ABOUT 30 DME FROM LUBBOCK VOR AT 8500 FT, I DECIDED THE WX WAS DETERIORATING TO A POINT THAT I HAD TO GET ON THE GND. I WAS ABOVE A CLOUD COVER IN VFR CONDITIONS BUT UNABLE TO SEE THE GND. I CHKED LUBBOCK ATIS AND THEY WERE RPTING 800 FT CEILING AND 10 MI VISIBILITY. THE WX BEHIND ME WAS NO BETTER. I CHKED MY GPS AND IT WAS SAYING 'NO GPS COVERAGE.' I FOUND A LARGE HOLE IN THE CLOUDS AND WENT UNDER. THE VISIBILITY WAS GOOD BUT LOW CEILINGS. I HEADED FOR LUBBOCK VOR ON V102 AND CHKED LUBBOCK'S ATIS TO CALL THE TWR AND CONFESS MY SIT AND ASK FOR HELP. BEFORE I WAS ABLE TO CALL THE TWR, I FOUND MYSELF IN THEIR AIRSPACE. I CALLED THE TWR, TOLD THEM MY SIT AND LOCATION, AND ASKED TO LAND. DETERIORATING WX. LOSS OF GPS COVERAGE. TRIED TO TROUBLESHOOT PROB TOO LONG. STRESS LEVEL RISING AND MISREAD VOR'S CDI. AFTER DEPARTING LUBBOCK ARPT ON MAY/XA/99, I FOUND MY GPS STILL INOP. THE PROB WITH THE GPS IS THE EXTERNAL ANTENNA. I HAVE A GARMIN 195 HANDHELD AND IT WORKS FINE WHEN REMOVED FROM THE ACFT YOKE.

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.