Arrival (ARR) – Origin
Push – displays the arrival page for the origin airport. Origin airport arrivals selection is used during a turn–back situation.
Flight Management, Navigation -FMC Preflight 737 Operations Manual
Arrival (ARR) – Destination
Push – displays the arrival page for the destination airport.
Arrival (ARR) – OTHER
Displays the arrival page for the airport entered into this line through the
scratchpad.
ARR prompt for OTHER allows display of arrival information about airports that
are not an origin or destination. The displayed information can be viewed but
cannot be selected, because the airport is not on the route.
Departures Page
The DEPARTURES page is used to select the departure runway, SID, and transition for the route origin airport.
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Flight Management, Navigation -FMC Preflight 737 Operations Manual
Standard Instrument Departures (SIDS)
Displays SIDS for the airport and runway selections.
Without the selection of a runway on the RTE page, the initial display contains all of the information for the airport runways and SIDS. As selections are made, incompatible options are removed. SID transitions are displayed after a SID is selected.
Transitions (TRANS)
Displays transitions compatible with the selected SID.
Flight Management, Navigation -FMC Preflight 737 Operations Manual
ERASE/INDEX
Erase is displayed when a route modification is pending. INDEX is displayed
when no route modification is pending.
ERASE push – removes route modifications that are not executed and restores the
original route.
INDEX push – displays the DEP/ARR INDEX page.
RUNWAYS
Displays a list of runways for the selected airport.
The runway selected on the RTE page is displayed as <SEL> or <ACT> when this
page is displayed.
ROUTE
Push – displays the RTE page.
Selecting Options
Selecting an option displays <SEL> inboard of the option, and a route modification is created. When the modification is executed, the <SEL> becomes <ACT>. Leaving the page and returning displays all options and the <SEL> or <ACT> prompts.
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Flight Management, Navigation -FMC Preflight
Performance Pages Performance Initialization Page
The PERF INIT page allows the entry of airplane and route data to initialize performance calculations. This information is required for VNAV calculations.
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Flight Management, Navigation -FMC Preflight 737 Operations Manual
Gross Weight/Cruise Center of Gravity (GW/CRZ CG)
Airplane gross weight is required. The entry can be made by the flight crew or
automatically calculated by the FMC, following entry of zero fuel weight.
Enter airplane gross weight.
Valid entries are xxx or xxx.x.
Automatically displays calculated weight when zero fuel weight is entered first.
(U5 and on) Displays default or manually entered cruise CG. Entry of actual cruise
CG may increase maximum altitude capability.
FUEL
Fuel on board is automatically displayed as received from the airplane fuel
summation unit.
Display is blank if the FMC is not receiving the required fuel data.
(U7.5 and on) In flight, when the FMC is not receiving the required fuel data,
displays dashes and manual fuel weight entry is possible. After manual entry,
MAN (manual) shows by the fuel weight. After manual entry, periodic update of
the fuel weight is required for the remainder of the flight to keep gross weight
current.
Zero Fuel Weight (ZFW)
Airplane zero fuel weight is required. Normally the ZFW is entered from the
airplane dispatch papers, and the FMC calculates the airplane gross weight.
Enter the airplane zero fuel weight.
Valid entry is xxx or xxx.x.
Calculated zero fuel weight is automatically displayed if airplane gross weight is
entered first and fuel on board is valid.
RESERVES
Enter fuel reserves for the route.
Entry is required to complete the preflight.
Valid entry is xx or xx.x.
COST INDEX
The cost index is used to calculate ECON climb and cruise speeds. The value reflects the relative impacts on overall trip cost of fuel cost as compared to other direct hourly operating costs.
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