(2023) Service Advisory 23080 Rev B: Autopilot Disconnect

REVISION B:

Added Resolution

PRODUCTS AFFECTED:

Garmin GFC 600 systems are affected.

ISSUE:

Due to how waypoint position data is processed, an autopilot disconnect may occur when a flight plan or procedure containing waypoints with specific position data are loaded.

Refer to the following tables for lists of affected airports, intersections, VORs, approaches procedures, SID/STARs, and airways.

Table 1. Airports

Table 2. Intersections

Table 3. VORs

Table 4. Approaches With Fixes

Table 5. SIDs and STARs with Fixes

Table 6. Airways with Fixes

PILOT ACTION:

If able, do not load any affected waypoint or any procedure that includes an affected waypoint.

If a disconnect occurs, fly the aircraft without the use of the autopilot through the remainder of the flight plan.

RESOLUTION:

This has been fixed in GMC 605 Software Version 2.85. Refer to Garmin STC Service Bulletin 23099.