B-3 Page 2 of 2
MN-FLT-OH-201
Flight Crew Operations Manual Bulletin No. GOT-3 , Dated March 15, 2018 (continued)
Operating Instructions
When wind data is entered into the DES FORECAST page with no approach
selected in the active flight plan, and the VNAV INVALID-PERF scratchpad
message is shown in flight, an approach should be entered into the active flight
plan. This should be followed by reentering the original CI or a new CI on the
PERF INIT page. Afterwards, activating the data modification by pushing the
execute (EXEC) key will restart FMC predictions and allow the crew to reengage
VNAV.
The inability to reenter a CI if the VNAV INVALID-PERF scratchpad message
is shown, can be avoided if an approach is selected in the active flight plan prior
to the FMC-calculated Top of Descent (TOD), or if winds are not entered on the
DES FORECAST page.
March 1, 2021
