Textron Aviation Inc. (Beechcraft) King Air model B200, B200C, B200GT, B200CGT, 300, 300LW, B300, and B300C aircraft equipped with all of the following:
- G1000 NXi Integrated Flight Deck per STC SA01535WI-D
- G1000 NXi System Software Version 2286.11, 2286.12, or 2286.13
- GMA 1360 Audio Panel
King Air model A200, A200CT, 200, and 200C aircraft are not affected by this Service Bulletin.
Mandatory: This STC Service Bulletin must be accomplished no later than November 30, 2022
This service bulletin provides instructions for a wiring update to correct low audio levels for warnings as described in Garmin Service Alert 21117.
This Service Bulletin is warranty reimbursable with a deadline of November 30, 2022 after which this upgrade will no longer be reimbursable for labor.