Mon, Jul 08, 2019
Applies To Certain Versions Of The Rockwell Collins Pro Line Fusion Flight Management Systems
The FAA has issued an SAIB concerning a potential issue that may cause certain versions of the Rockwell Collins Pro Line Fusion Flight Management Systems (FMS) to fly a wrong turn direction when deleting a waypoint.
According to the SAIB. if the crew uses “DELETE” to remove a waypoint in a departure, Standard Terminal Arrival Routes (STAR), or approach, it is possible for the FMS to make the longest turn (more 180º of turn) onto the following leg. This can occur if, for the waypoint being deleted, both of the following are true:
The following leg is Track-to-Fix (TF), and the database codes a required turn direction for turning onto the TF, and
After the deletion, the shortest turn is a different direction than when turning from the original, deleted waypoint.
This can occur for “DELETE” selections on any format, such as ROUTE or graphical flight planning on the map. The issue can occur for Left turns and Right Turns coded in Departures, STARs and approaches, including missed approaches.
The FAA recommends that the DELETE selection or entry NOT be used to remove a waypoint. Use an alternative method to delete waypoints. Refer to Rockwell Collins Operators Bulletin OPSB 0194-19 for further information.
The FAA is requesting owners and operators to report any cases related to this issue directly to the FAA.
The affected Rockwell Collins FMS include:
- FMSA-6010 Part Number 810-0163-2B0004
- FMSA-6010 Part Number 810-0163-3B0001
- FMSA-6010 Part Number 810-0163-1F0001
(Image from file)
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