User's Guide

User Guide for the Envoy Data Link
Document Number: UG-15000 Rev. A Page 72 of 173
Oceanic Clearance Request
Available from ACARS PRE FLIGHT and ACARS EN ROUTE menus, and, if a CPDLC COMM
session is active, from the ATC REQUEST menu. When required data has been entered, the
SEND action is available at LSK R6.
Figure 5-7 OCEANIC CLR REQ
The data input in the fields on this page persists if user navigates away from this page before
sending the request.
Table 5-5 OCEANIC CLR REQ Fields
L1
ATC
CENTER
Required. Recipient of this request (may or may not be current data authority).
L2
ENTRY PT
Required. Requested entry point. 3 to 11 characters (POS such as 55N101W).
L3
FLT LEVEL
Required. Requested flight level. Example: 350.
L4
FREE TEXT
Optional field of up to 24 characters to clarify this request.
R1
TIME
Required. Requested time for oceanic clearance at entry point and flight level.
R2
MACH
Required. Requested Mach speed at entry point. Example: 078
R3
MAX FL
Optional. Maximum flight level expressed in 500 ft. increments.
R6
SEND
Send action appears when required input has been entered. Press LSK R6 (SEND) to
transmit the formatted message.
L6
RETURN
Return to previous page
Additional examples of the ENTRY POINT (POS) field:
DDYDDDZ
53N054W
DDNNYDDDNNZ
5305N05405W
AAA or AAAA or AAAAA
CARPE
For example b, in the position format DDNNYDDDNNZ, the ranges of values are:
DD
NN
Y
DDD
NN
Z
00-90 Degrees
00-59 Minutes
N (North) or S
(South)
000-180
Degrees
00-59
Minutes
E (East) or W
(West)
When the first DD reads 90 Degrees, the following NN must be zero minutes.
When DDD reads 180 degrees, the following NN must be zero minutes.
LSK
LABEL
FUNCTION or DESCRIPTION
Format
Entry Point