737 Operations Manual
EXEC key ........................................................................................ Push Observe the MOD CRZ CLB/MOD CRZ DES page (or other selected MOD CLB/MOD DES page) changes to ACT. Observe climb/descent is initiated at the TGT SPD (if VNAV engaged).
Performance and Progress Functions of the FMC/CDU Determining ETA And Fuel Remaining For New Destination
RTE page ........................................................................................ Select
Enter the new destination over the original DEST. Enter correct routing to the new destination using the RTE, RTE LEGS, and ARRIVALS pages, as appropriate. Correct any ROUTE DISCONTINUITY.
PROGRESS page ........................................................................... Select Observe the new destination with a MOD title. Check ETA and FUEL remaining.
RTE page ........................................................................................ Select
EXEC or ERASE the new destination/routing, as desired. Observe the MOD RTE page changes to ACT.
Estimated Wind Entries For Cruise Waypoints
RTE LEGS page ............................................................................. Select Observe the DATA prompt displayed.
RTE DATA page............................................................................. Select
Enter the estimated true wind direction/speed on the appropriate
line(s).
Step Climb Evaluation
CRZ page ....................................................................................... Select
Enter the desired step climb altitude on the STEP TO line. If known, enter the estimated average true wind direction/speed for the desired step climb altitude on the ACTUAL or EST WIND line.
Step climb savings................................................................... Determine Observe the fuel SAVINGS/PENALTY and FUEL AT ______ (destination) lines to determine if a higher cruise altitude is advantageous.
Copyright . The Boeing Company. See title page for details.
SP.11.18 December 3, 2004
Supplementary Procedures -Flight Management, Navigation 737 Operations Manual
If step climb fuel savings are significant, use the appropriate climb procedure to initiate climb to the higher altitude when NOW is displayed on the STEP POINT line.
Note: Step climb evaluations do not consider buffet margin limits. If the altitude entered for the step climb evaluation is higher than the maximum altitude for flight with an adequate buffet margin, the message “MAX ALT FLXXX” will be displayed in the scratch pad. Ensure that the new cruise altitude entered for the climb is at or below the MAX ALT displayed in the message in order to maintain a safe buffet margin.
Entering Descent Forecasts
DES page ........................................................................................Select Observe the FORECAST prompt displayed.
DES FORECASTS page ................................................................Select
Verify the TRANS LVL and revise if required. Enter anticipated TAI ON/OFF altitudes if appropriate. Enter average ISA DEV forecast for descent and destination QNH. (U3 and on) Enter forecast descent WINDs (for up to three different altitudes).
EXEC key.........................................................................................Push Observe the MOD DES FORECASTS page changes to ACT.
RTA Navigation Using the FMC/CDU (U4 and on)
Note: An active FMC flight plan complete with all performance data must exist before the required time of arrival (RTA) mode can be used.
Entering an RTA Waypoint and Time
RTA PROGRESS page ...................................................................Select
On PROGRESS page 2, line 1L, enter the flight plan waypoint where the required time of arrival is applicable. Observe the MOD RTA PROGRESS page displayed with the computed ETA, for the entered waypoint, displayed under RTA in line 1R.
RTA .................................................................................................. Enter
Supplementary Procedures -Flight Management, Navigation 737 Operations Manual
Enter into line 1R, the required time of arrival in hours, minutes and seconds using a six–digit number; (Examples: 174530, 1745, 1745.5). Observe MOD RTA PROGRESS page displayed with pertinent data for complying with entered RTA. Observe EXEC key illuminated.
EXEC key ........................................................................................ Push Observe the ACT RTA PROGRESS page displayed.
Entering Speed Restrictions For RTA Navigation
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