Narrative:

Aircraft towed a glider from sdm on an easterly direction. Using jli to keep track of position re; TCA. After discovering aircraft VOR fluctuations of plus or minus 15 degree, I feel I might have penetrated the san TCA in the area of lyons peak thinking I was further east. Not only was navigation radio discovered unreliable, the x-ponder which was on 1200 has been questioned by ATC as being off code as well as large mode C altitude changes while aircraft was in level flight. It seems company equipment is of low quality.

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Original NASA ASRS Text

Title: GA SMA TCA PENETRATION WITHOUT AUTH.

Narrative: ACFT TOWED A GLIDER FROM SDM ON AN EASTERLY DIRECTION. USING JLI TO KEEP TRACK OF POSITION RE; TCA. AFTER DISCOVERING ACFT VOR FLUCTUATIONS OF PLUS OR MINUS 15 DEG, I FEEL I MIGHT HAVE PENETRATED THE SAN TCA IN THE AREA OF LYONS PEAK THINKING I WAS FURTHER EAST. NOT ONLY WAS NAV RADIO DISCOVERED UNRELIABLE, THE X-PONDER WHICH WAS ON 1200 HAS BEEN QUESTIONED BY ATC AS BEING OFF CODE AS WELL AS LARGE MODE C ALT CHANGES WHILE ACFT WAS IN LEVEL FLT. IT SEEMS COMPANY EQUIPMENT IS OF LOW QUALITY.

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