User's Guide

User Guide for the Envoy Data Link
Document Number: UG-15000 Rev. A Page 45 of 173
ATC REPORT ALT
This page is available only during an active ATN CPDLC session. The Envoy automatically detects
a valid flight level and displays the VERIFY action prompt. The aircrew can verify the resulting
downlink prior to sending.
Figure 3-11 ATC REPORT ALT
The ATC REPORT ALT page for ATN B1 contains mutually exclusive fields and constructs a
downlink report containing either present flight level or preferred flight level, disabling the other
input field.
Table 3-10 ATC REPORT ALT Fields
LSK
Label
Short Description
L1
PRESENT LVL
Acceptable input for either field (the other field is disabled when:
• Flight level (FL350) or block level (FL350/FL370)
• Numeric: 5, 50, 20000FT, 255M are translated to FL500, FL200, or
FL255
L3
PREFERRED LVL
R6
VERIFY
When a valid flight level or block level is entered in one field, the other
field is disabled and the VERIFY prompt appears for aircrew to verify
the constructed downlink response.
After verification, an optional free text field is available to provide
context for the report.
FANS REPORT: LEAVING
If a multi-element uplink contains a REPORT LEAVING element, the Envoy automatically displays
the standard STANDBY, UNABLE or WILCO for the first instruction and a selection list for the
REPORT LEAVING. The example below is an uplink CLIMB TO instruction with a REPORT
LEAVING element.
When the aircrew presses LSK R5 (WILCO), the Envoy constructs a response and queues an
ARMED report with an event trigger of +130 ft of FL330 for 10 seconds.