Small Aircraft
Flight Crew Commercial; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 35; Flight Crew Total 5200; Flight Crew Type 3500
Troubleshooting; Human-Machine Interface
Aircraft Equipment Problem Less Severe; Airspace Violation All Types; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem; Flight Crew Exited Penetrated Airspace
Chart Or Publication; Aircraft
I was taking a short trip to the coast from PAO with a brand new Garmin Navigation database update into a brand new Class B change for the SFO area. The new Garmin update included the new Class B inromation. The GPS showed me that the base of the Class B changed from 4000 to 8000 not to far from OSI VOR. This was a change; since it had been a shift from 4000 to 6000. I was briefly over 6000 before descending. When I returned; I double checked the new chart and found that the GPS data was wrong--the base was 6000 not 8000. I later checked with the also brand new database in the Garmin Receiver in my other airplane. It also showed incorrect information as to the base of the Class B in that same area. It also showed 8000 instead of 6000.Bottom line is that I relied on the newly downloaded database; which was supposed to accurately conform to the new changes in the Class B. Although the new database in both airplanes seemed to conform to the many changes; it was inaccurate as to this area. This occurred only 2 days after the Class B changes; so I am planning on informing Garmin of their error. Both airplanes; with 2 separate Garmin products; both with 2 new Garmin database downloads were consistent but wrong.
Reporter received confirmation from manufacturer acknowledging a database error.
GA pilot reported the Garmin Navigation database was incorrect referencing the new SFO Class B airspace.