737 MAX Flight Crew Operations Manual
Flight Management, Navigation -
ATC Data Link
MN-FLT-OH-201
11.34.43
Valid entry is aircraft registration number (tail number) including dash (–)
characters, if applicable.
4
Max Uplink Delay (MAX U/L DELAY)
Allows the entry of 1 to 999 seconds as directed by ATC for use by the FMC to
determine if the uplink is delayed more than the entered time.
5
ATC COMM
Display is blank when no ATC connection exists.
Displays SELECT OFF when ATC connection exists.
Push – terminates active ATC data link connections.
6
ATC INDEX
Push – displays ATC INDEX page.
7
LOGON SEND
Push –
• sends logon message to ATC center
• displays SENT
• displays RESEND if no response from ATC after 10 minutes
• displays ACCEPTED or REJECTED after ATC response.
8
Active Center (ACT CTR)
Displays four character identifier of active ATC center.
9
Next Center (NEXT CTR)
Displays four character identifier of next ATC center when known; otherwise,
blank.
10
ADS (ARM), (ACT), (INOP), (OFF)
ADS (ARM) –
• ADS on and no ADS connection exists
• displays SELECT OFF prompt.
Push –
• terminates all ADS connections and ADS reporting
• prevents ATC from requesting ADS reporting
• displays ADS (OFF)
• displays ADS SELECT ARM prompt.
March 1, 2021
