Owners and operators of aircraft equipped with G1000 systems should not use the OBS mode until GDU 1040 software version 4.01 or higher software is installed. This Service Alert is based on potential inconsistent operation of the G1000 OBS mode of operation.
In limited circumstances the G1000 may not properly reset the course pointer in OBS mode usage. If this occurs, course deviation indicated is correct, although the “picture” on the HSI presented to the pilot for navigation may not be oriented as expected.
The updated software is expected to become available the second quarter of 2005. Contact your nearest Garmin Avionics Dealer or OEM for installation of the updated software. The software install is covered under Garmin warranty with no charge for parts and labor. Garmin encourages its customers to contact their aircraft manufacturer’s product support team with any questions concerning this alert.