6. C. (11) TEST Mode
The TEST mode function is used to select the following crew
initiated tests (Figure 6-21).
●
●
●
●
●
●
●
●
Electronic Flight Instrument System (EFIS)
Engine Instrument and Crew Alerting SYSTEM (EICAS)
Radio Altimeter (RADALT)
Autopilot Disconnect Logic
(A/P DISC)
Angle of Attack System (AOA)
Autothrottle Disconnect Logic (A/T DISC)
Windshear System Test (Option)
Maintenance Test
(a) TEST Function Key Selection - Selection of the TEST mode
causes the function key to be annunciated along with the TEST
menu to be displayed
on the DC CRT (Figure 6-21). The TEST
mode function is used to activate crew initiated subsystem
tests.
A TEST function key selection has no effect on any of
the display formats. TEST selections are made using the menu
driven line select keys.
(b) Crew Initiated System Tests - The individual line keys of this
menu select the self-test mode of the named subsystem. The
activated test is boxed as long as the line key is depressed.
Tests are initiated for the on-side displays only. EICAS
tests can be selected from either side DC.
(12) DISP Mode
The DISP menu, Figure 6-22, is displayed on the DC CRT in this
mode. This menu gives the following display choices.
. Flight Director Command Bar Presentation
- Single Cue (SC) Command Bar
- Cross Pointer (CP) Command Bar
. CAS/Mach Display Selection
● Metric Altitude Display Selection
c Baro Set Display Units
- Inches of Mercury (IN)
- Millibars (MB)
● Bearing Pointer Declutter Mode (PFD)
22-14-00
Page 194
Aug 15/91
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