What FMS scratchpad message appears within 5 NM of TOD if a lower MCP altitude has not been selected?

Prepare for the Delta 737 PA-LOD Exam with flashcards and multiple choice questions. Each question includes hints and explanations, ensuring you're ready for exam day!

Multiple Choice

What FMS scratchpad message appears within 5 NM of TOD if a lower MCP altitude has not been selected?

When you’re near the top of descent and you expect to descend to a lower altitude, the FMS requires the MCP altitude to be set to that lower value so the managed vertical path can be followed. If that lower MCP altitude hasn’t been selected, the FMS scratchpad prompts you to re-establish it with a reset command. This prompt appears within 5 NM of TOD to ensure you re-enter the target altitude before crossing the TOD, so the autopilot can continue the descent correctly. Entering the lower altitude into the MCP clears the message and activates the intended descent profile.

When you’re near the top of descent and you expect to descend to a lower altitude, the FMS requires the MCP altitude to be set to that lower value so the managed vertical path can be followed. If that lower MCP altitude hasn’t been selected, the FMS scratchpad prompts you to re-establish it with a reset command. This prompt appears within 5 NM of TOD to ensure you re-enter the target altitude before crossing the TOD, so the autopilot can continue the descent correctly. Entering the lower altitude into the MCP clears the message and activates the intended descent profile.

More practice questions