Performance initialization

Match the inputs

On PERF INIT, compare ZFW, fuel, takeoff CG and gross weight to the aircraft and EFB. Check units as well as numbers.

Set the cruise plan

Enter the planned cruise altitude and applicable wind, reserve and performance data. A datalink import is a starting point; compare it to the actual loaded aircraft.

Complete all three pages

Work through PERF INIT 1/3 to 3/3. Check every required value and the selected speed schedule.

Confirm initialization

Press CONFIRM INIT on page 3/3 once it appears. FSS states that without this confirmation the TOC/TOD and VNAV profile are not calculated.

Reconfirm after a change

After changing PERF INIT data, return to page 3/3 and press CONFIRM INIT again. Check that predictions are recalculated; a route line alone does not establish a vertical profile.

Check departure data

Review the takeoff page, flap setting, speeds and trim against the manifest and actual aircraft. Set the TRS dataset and accept it when applicable.

Trim sets stabilizer position. TO pitch is a flight-director reference. Similar-looking numbers have different jobs. The green trim band alone does not prove you entered the calculated trim. ^{[24, 25]}