controller action of CMS operations. (If ATC must change the STA, Target aircraft, or the route of either the Target or IM aircraft, the current IM clearance must be terminated and a new IM clearance issued. These events typically do create a or of the list”, and “re-schedule” “ripple trigger different CMS values. See Section B.7 for terminating a clearance.) B.3.1 IM clearance with new information (example, Target aircraft’s FAS) (Callsign), AMEND INTERVAL SPACING CLEARANCE. TARGET FINAL ATC: APPROACH SPEED IS (one-two-six) KNOTS. AMEND INTERVAL SPACING CLEARANCE. TARGET FINAL APPROACH Crew: SPEED (one-two-six) KNOTS, (Callsign). B.3.2 Amend IM clearance with change to information (example, spacing interval) (Callsign), AMEND INTERVAL SPACING CLEARANCE. SPACE (eight-zero) ATC: SECONDS BEHIND TARGET. AMEND INTERVAL SPACING CLEARANCE. SPACE (eight-zero) SECONDS Crew: BEHIND TARGET, (Callsign). B.4 Flight Crew notifies ATC that the IM operation has begun It is desirable to have the flight crew notify ATC when the IM spacing has begun. Data from simulator experiments indicate approximately 45 to 60 seconds are needed after ATC issues an IM clearance for the crew to manually enter the data and the spacing software to calculate the required speed. (Regional Approach), (Callsign) INTERVAL SPACING BEHIND (Target-Callsign). Crew: (Callsign), ATC: B.5 Flight Crew notifies ATC that an IM operation is being conducted The current controller will make the receiving controller aware of aircraft conducting IM operations through the data tag display or other coordination procedure. In addition, the flight crew will include the information during check-in with the receiving controller. (Regional Approach), (Callsign) PASSING (one-two thousand), INTERVAL SPACING. Crew: (Callsign), ROGER. ATC: B.6 Suspending and Resuming IM operations The IM operation may be suspended and resumed by ATC when needed by the controller to achieve other objectives over a short time period. This may be used if both the Target aircraft and the FIM aircraft remain on the assigned route.
controller action of CMS operations. (If ATC must change the STA, Target aircraft, or the route of either the Target or IM aircraft, the current IM clearance must be terminated and a new IM clearance issued. These events typically do create a “re-schedule” or “ripple of the list”, and trigger different CMS values. See Section B.7 for terminating a clearance.) B.3.1 IM clearance with new information (example, Target aircraft’s FAS) ATC: (Callsign), AMEND INTERVAL SPACING CLEARANCE. TARGET FINAL APPROACH SPEED IS (one-two-six) KNOTS. Crew: AMEND INTERVAL SPACING CLEARANCE. TARGET FINAL APPROACH SPEED (one-two-six) KNOTS, (Callsign). B.3.2 Amend IM clearance with change to information (example, spacing interval) ATC: (Callsign), AMEND INTERVAL SPACING CLEARANCE. SPACE (eight-zero) SECONDS BEHIND TARGET. Crew: AMEND INTERVAL SPACING CLEARANCE. SPACE (eight-zero) SECONDS BEHIND TARGET, (Callsign). B.4 Flight Crew notifies ATC that the IM operation has begun It is desirable to have the flight crew notify ATC when the IM spacing has begun. Data from simulator experiments indicate approximately 45 to 60 seconds are needed after ATC issues an IM clearance for the crew to manually enter the data and the spacing software to calculate the required speed. Crew: (Regional Approach), (Callsign) INTERVAL SPACING BEHIND (Target-Callsign). ATC: (Callsign), B.5 Flight Crew notifies ATC that an IM operation is being conducted The current controller will make the receiving controller aware of aircraft conducting IM operations through the data tag display or other coordination procedure. In addition, the flight crew will include the information during check-in with the receiving controller. Crew: (Regional Approach), (Callsign) PASSING (one-two thousand), INTERVAL SPACING. ATC: (Callsign), ROGER. B.6 Suspending and Resuming IM operations The IM operation may be suspended and resumed by ATC when needed by the controller to achieve other objectives over a short time period. This may be used if both the Target aircraft and the FIM aircraft remain on the assigned route.
ATD-1%20ConOps_NASAreview.docx