PRIMARY DISPLAY SYSTEM -CHECKLIST OPERATIONAL NOTES
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PRIMARY DISPLAY SYSTEM -CHECKLIST LANDING PREPARATION FEATURE
Landing Preparation Functions
Many non-normal checklists contain landing preparation line items also known as deferred line items. These items have a relation to the approach and landing phases of flight. The landing preparation information includes:
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Inoperative equipment
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Limitations
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Landing preparation procedures
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Conditional statements
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Notes.
If a non-normal checklist has deferred items, they show on a subsequent normal checklist.
A non-normal checklist that contains deferred items is complete when all line items before the deferred items are complete. The message CHECKLIST COMPLETE EXCEPT DEFERRED ITEMS shows on the bottom of the checklist.
On the normal checklists, each set of deferred items refers to the EICAS message that caused the original non-normal checklist. A line makes a separation of the deferred items from both the originating non-normal checklist and the approach or landing normal checklist.
If a non-normal condition occurs after the normal checklist is complete, the non-normal checklist is not complete until all items including the deferred items are complete.
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PRIMARY DISPLAY SYSTEM -CHECKLIST LANDING PREPARATION FEATURE
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PRIMARY DISPLAY SYSTEM -NON-NORMAL CHECKLIST CONDITIONAL STATEMENTS
General
These are the two different types of conditional statements for non-normal checklists:
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Closed loop (automatic switch and system input)
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Open loop (manual input from the pilot).
Conditional statements have an IF-THEN structure.
Open Loop If Statement
Open loop IF statements include the selections YES and NO. Use the CCD to place the cursor adjacent to the YES/NO line and make a selection to answer the statement. If the answer to the IF statement is yes, the cursor moves to the first line item within the IF statement to be completed. If the answer to the IF statement is no, the line item turns cyan to show that the item is not applicable.
Closed Loop If Statement
Closed loop IF statements are similar to open loop IF statements with one difference. In closed loop IF statements, the YES and NO decision is made automatically by the checklist function which monitors airplane system status. If the condition is yes, the cursor moves to the first line item within the IF statement to be completed. If the condition is no, the IF statement is satisfied and turns cyan to show that the item is not applicable.
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PRIMARY DISPLAY SYSTEM -NON-NORMAL CHECKLIST CONDITIONAL STATEMENTS
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PRIMARY DISPLAY SYSTEM -CHECKLIST OVERRIDE FUNCTION/CHECKLIST TIMERS
General
These are the two types of override functions:
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Checklist item overrides
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Checklist overrides.
Checklist Item Override
The ITEM OVRD selection is available on all checklists. Selection of the ITEM OVRD command key turns the highlighted step to cyan. This shows that the step has been overridden. Both closed loop and open loop steps can be overridden.
A checklist is complete if all steps, except landing preparation steps, are green or cyan.
Conditional statements (both closed and open loop) cannot be overridden. Steps within conditional statements can be overridden.
Checklist Override
Full checklists can be overridden. Select the CHKL OVRD command key to override a checklist. The checklist turns cyan when it is overridden. All related operational notes and landing preparation items go away and conditional statements cancel. The message CHECKLIST OVERRIDDEN shows at the bottom of the page.
Checklist Timers
Where necessary, an automatic timer shows in the upper right corner of the checklist. This helps complete checklist items where time delays are necessary. Maximum time is 99 minutes and 59 seconds. All timers are countdown timers. Timers usually go with conditional IF statements. When the line item highlight box shows on a line item, the timer starts to count down.
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