With the release of Flight Management System (FMS) Software Version SCN 803.0/903.0 for the UNS-1E/ 1Esp/ 1F/ 1L in 2006, a feature called Synchronous (SYNC) Mode was introduced. SYNC delivers a convenient way to manage FMS Nav functions during flight.

Until recently, Course Deviation Indicator (CDI) and Required Navigation Performance (RNP) values in the Flight Management System (FMS) Navigation Database were only in Authorization Required (AR) Area Navigation (RNAV) procedures.

The Federal Aviation Administration (FAA) has issued a compliance guide to aid operators in submitting the required content for an A056 data link authorization. A copy of the guide is available on the FAA's website.

Have you been affected by FMS Navigation Database software 601.X/701.X – 604.X/704.X? Upgrade today to gain back Middle East approaches and more. Here are three reasons why an upgrade may make sense for you now...

You have just departed an airport with instructions to climb on runway heading to 1500 feet and then turn to join an airway segment or SID that is part of your flight plan. You know that when you couple the autopilot to long range navigation source, the FMS will automatically command a turn towards the active leg – From ABCDE To FGHIJ – without any requirement to put in a heading if none was assigned. However, the turn direction you would most likely fly manually ends up being the opposite of what the FMS actually does.