SN3308 Service Bulletins and Service Information Letters

To download the latest software for the SN3308 unit please use the following form: 
Software Update Download

SIL 3308-12: Replacement Window Availability - 1/13/2014

SIL 3308-11: Unapproved Lamp Kits for SN3308 - 8/8/2013

SIL 3308-10: Flux gate failure annunciation - 8/8/2012

SIL 3308-09: Display of flight plan lines of multi-leg flight plan - 6/19/2012

SIL 3308-08: Software version 2.30 for ARINC 429 interface with GPS WAAS receivers - 8/27/2008

SB 3308-07: Software version 2.11 - 7/11/2008

SB 3308-06: Operation in 'free gyro mode' - 4/8/2008

SIL 3308-05: Interfacing with Garmin GNS 400W/500W series receivers - 4/27/2007

Note: Software version 2.30 allows display of GPS approach vertical deviation without the addition of the analog lateral and vertical deviation wiring described in this SIL. Refer to SIL 3308-08. 

SB 3308-02: Regulator failures on certain SN3308 serial numbers - 8/3/2000

SIL 3308-04: Pull-up resistors not necessary on serial numbers 2700 and above - 5/25/2000

SB 3308-01: Power supply upgrade - 6/9/1999