Added GSU 75/75B Reset Information
G500/G600 TXi PFD/MFD/EIS display systems installed using Approved Model List (AML) Supplemental Type Certificate (STC) SA02571SE are affected.
Recommended: GSU 75/75B AHRS Software Version 2.06 is recommended at the next scheduled maintenance interval. All other software versions are optional.
STC SA02571SE, Master Drawing List revision 5 includes G500/G600 TXi Main Software Version 2.30.
G500/G600 TXi Main Software Version 2.30 expands the TXi interface. The TXi can now be interfaced to a certified standalone G5 (via GAD 29/29B) without a GFC 500 autopilot system.
Previously, the TXi could only interface with a G5 when a GFC 500 autopilot system was also installed.
GSU 75/75B AHRS Software Version 2.06 fixes a problem that causes the GSU 75/75B unit to reset during flight. Under extremely rare conditions, when the GSU 75/75B is operating in Reversionary Mode, the GSU 75/75B units may simultaneously reset during significant accelerations/decelerations such as those experienced during takeoff and landing. This issue does not occur when the AHRS is operating in Primary Mode and does not result in misleading data.