Service Notifications

Service Bulletins

PUBLICATION NUMBER
PART NUMBER
DESCRIPTION
REV DATE
MD41-24X
Annunciation Control Unit
03/09/2011
4300-( )
Attitude Gyro, Electric
07/25/2018
12/31/2007
09/12/2005
09/12/2005
09/12/2005
4200 Series
Attitude Gyro, Electric, 2-inch
02/01/2008
09/26/2006
6430020-( ), 6430030-( ), 6430040-( ), 6431060-( )
Advanced Lithium-ion Battery
06/22/2022
01/12/2022
01/12/2022
12/18/2020
6430020-( ), 6430030-( ), 6430040-( )
Advanced Lithium-ion Battery
05/26/2020
6430017-( )
Advanced Lithium-ion Battery
10/25/2022
03/21/2016
08/27/2015
6430044-( )
Advanced Lithium-ion Battery
07/27/2015
01/19/2015
6430043-1
Battery Charger/Tester
03/25/2019
282-10()
True Blue Charger MX
06/21/2022
6420093-( )
Digital Clock/USB Charger
03/21/2016
MD200 Series
Course Deviation Indicator
12/20/1999
6420023-( )
FLEX Custom Function Display
05/23/2023
08/23/2022
08/20/2021
02/10/2021
6434000-1
Frequency Converter
12/15/2023
MD421 Module
Emergency Power System
12/01/2008
6431200-( )
1200 VA, DC to AC Static Inverter
05/04/2023
01/11/2022
01/11/2022
4305-150 Series
Remote Directional Gyro
09/02/2002
12/18/2001
08/01/2001
6420302-( )
SAM® Standby Attitude Module
07/11/2020
08/29/2018
03/26/2018
03/28/2015
12/22/2014
03/21/2014
10/11/2013
05/10/2013
05/03/2013
1394T100-14RB
Turn Coordinator with electrical rate output
05/24/2007
1394T100-10RZ
Autopilot Turn Coordinator
08/04/1999
1394T100-10RA
Autopilot Turn Coordinator
05/30/2001
1394T100-( )RB
Turn Coordinator with electrical rate output
08/29/2007
6430120-( ), 6430240-( )
DC/DC Power Converter
06/08/2022
6430280-( )
115VAC to 28VDC Converter
12/16/2019

Service Information Letter Index

View all Service Information Letters (SIL) with the latest product notifications, service policy updates, recommendations and other helpful supporting documents.

PUBLICATION NUMBER
PART NUMBER
DESCRIPTION
REV DATE
1394T100-( )B
Turn Coordinator
05/30/06
3300-XX SERIES
Directional Gyro
07/08/08
4300-XXX Series
Attitude Indicator
07/30/09
06/06/08
01/02/07
11/29/06
08/30/06
10/26/05
4305-150
Directional Gyro
04/03/02
4300-8765-1L
4300-8765-3L
Attitude Indicator
10/08/08
MD15-XXX
Altimeter
09/12/11
MD200 SERIES
Course Deviation Indicator, 2″
05/30/01
91-XXX-XXXXX
Stand-Off
05/06/20
6430017-( )
Advanced Lithium-ion Battery
11/25/20
06/30/20
06/05/20
6430020-( ), 6430030-( ), 6430040-( ), 6431060-( )
Advanced Lithium-ion Battery
11/21/23