SA4550 Service Bulletins and Service Information Letters

• SB 4550-05: Display blanking and release of software version 1.07 (March 14, 2011)
  SB 4550-05 Service Bulletin (PDF 14kb)
  Updated SA4550 Pilot's Guide Errata (PDF 9kb)
  SA4550 Software Version 1.07 Update Instructions (PDF 1.4mb)
  SA4550 Software Page



• SB 4550-04: Display discoloration (August 20, 2009)
  SB 4550-04 Service Bulletin (PDF 16kb)



• SB 4550-03: Radar Altimeter Selection Pins (October 31, 2008)
  SB 4550-03 Service Bulletin (PDF 20kb)



• SB 4550-02: Attitude and Radar Altimeter test output drive current (August 30, 2007)
  SB 4550-02 Service Bulletin (PDF 16kb)



• SIL 4550-01: Pin out for radar altimeter type selection and release of software 1.02 (August 30, 2007)
  SIL 4550-0-1 Service Information Letter (PDF 23kb)