the learning never stops!

Waypoint   Notation

International Operations


 

Advisory Circular

[AC 91-70B, ¶6.3.2.7] Adopt an appropriate symbology to indicate the status of each waypoint listed on the master document. For example:

  1. The first pilot could circle the waypoint, waypoint number, or symbol on the master document to signify that they have independently cross-checked the entry of the coordinates in the navigation computer.
  2. The second pilot could then tick or diagonally slash the circled waypoint, waypoint number, or symbol to signify having performed the cross-check to include confirming the course and distance information within a specified tolerance (e.g., plus or minus 2° and 2 NM).

North Atlantic

[NAT Doc 007, ¶ 8.2.7.]

  • The waypoint number is entered against the relevant waypoint coordinates to indicate that the waypoint has been inserted into the navigation computers.
  • The waypoint number is circled, to signify that insertion of the correct coordinates in the navigation computers has been double-checked independently by another crew member.
  • The circled waypoint number is ticked, to signify that the relevant track and distance information has been double-checked.
  • The circled waypoint number is crossed out, to signify that the aircraft has overflown the waypoint concerned.

A Technique

images

The waypoint or waypoint number (for aircraft LRNS requiring numbered waypoints) is circled to indicate that the course and distance information has been compared to the plotting chart and its database coordinates have been checked.

images

A diagonal line will be drawn through the circled waypoint to show that the course and distance displayed in the FMS has been verified against the Master Document and plotting or en route chart.

images

Following acknowledgement of the position report, a second diagonal line will be drawn through the circled waypoint (creating an “X”) on the Master Document to indicate these duties have been completed.

Book Notes

Portions of this page can be found in the book International Flight Operations, Part VIII, Chapter 39.

References

Advisory Circular 91-70B, Oceanic and International Operations, 10/4/16, U.S. Department of Transportation

ICAO NAT Doc 007, North Atlantic Operations and Airspace Manual, v 2017-1

Revision: 20170505
Top