DETAILED WALKTHROUGH / MCDU
PERF INIT data entry
On PERF INIT, each line-select key transfers the scratchpad entry to the adjacent field.
Select the field
Open PERF INIT and identify the target field and its adjacent line-select key.
Enter the value
Type the value on the MCDU keypad. Press the adjacent line-select key to transfer it.
Rejected entry
If the MCDU rejects the entry, read the scratchpad message and use the required format. [19]