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OP GO NFLR, SMS, COM1, COM2, WPNS,
MU, DFIRS, GPS, ALE-47, ALE-50,
FADEC
Non critical BIT failure detected.
PBIT GO All systems except MC1, MC2, RWR,
FADEC
Initiated BIT has not been run since
ground power-up and PBIT is not reporting
any failures.
No indication (blank) adjacent to the equipment legend indicates that initiated BIT has not been
run on the equipment and that the periodic BIT has not detected any faults. LDDI, RDDI, MPCD,
and EFD have unique degraded messages of ALDDI, ARDDI, AMPCD, AEFD, and AUFCD in the
F/A-18F to allow distinguishing BIT status failures between front rear cockpit displays.
Figure 2-51. Equipment Status Messages (Sheet 2 of 2)
Weapon and stores status is displayed primarily on the stores display (selected from the menu
display). When the BIT display indicates a stores management system (SMS) failure, the affected
stations and degree of failure are identified on the stores display as described in A1-F18EA-TACseries.
2.21.3.2.1 Cautions and Advisories. Cautions and advisories are displayed on the left DDI except
when the left DDI is used for BIT display or weapon video (figure 2-52). When the left DDI is off or
failed, or when the LDDI is used for BIT or weapon video, cautions and advisories are displayed on the
center display. If the left and center displays fail or are turned off, the right DDI displays the cautions
and advisories. Cautions and advisories automatically move to the center display when BIT is selected
on the LDDI. Caution displays appear as 150%-size letters compared to the normal message symbology
size. Cautions are displayed as they occur beginning in the lower left portion of the DDI display and
sequence to the right up to three displays across. The fourth caution reindexes to the left edge above
the first caution. A dedicated caution display automatically replaces the HSI display if the number of
cautions exceeds 3 lines. Advisory displays appear as 120%-size letters on a single line beneath the
A1-F18EA-NFM-000
I-2-161 ORIGINAL
caution displays. The advisories are preceded by an ADV- legend and the individual advisories are
separated by commas. A caution or advisory is removed when the condition ceases. If there is a caution
or advisory displayed to the right of the removed caution or advisory the display remains blank.
Pressing the MASTER CAUTION light when the light is out repositions the remaining cautions and
advisories to the left and down to fill the blank displays. When a caution occurs, the MASTER
CAUTION light on the main instrument panel illuminates and the MASTER CAUTION tone or a
voice alert is heard in the headset. The MASTER CAUTION light is extinguished by pressing the light.
Refer to Warning/Caution/Advisory Displays in chapter 12 for the display implications and corrective
action procedures.
2.21.3.3 BIT Initiation. In addition to displaying equipment BIT status, the BIT top level and nine
sublevel displays (figure 2-53) are used to command initiated BIT. Those avionics set groups identified
by the legends on the top level display periphery have an initiated BIT capability. BIT may be initiated
for all operating units simultaneously except for some BIT that cannot be performed in flight. Figure
2-53 shows which initiated BIT are not allowed in flight. Additional steps are required to test the INS
and FCS. BIT for individual units within groups may be initiated through the BIT sublevel displays.
Pressing BIT returns to the BIT top level display. Pressing STOP or MENU when BIT is in progress
terminates initiated BIT. Performance of BIT assumes that the required electrical and hydraulic
power is applied to the equipment tested.
2.21.3.3.1 All Equipment. Simultaneous initiated BIT of all equipment installed is performed by
selecting AUTO on the BIT top level display. Equipment group, acronym and status are displayed at
the display options. Equipment group status indicates the lowest operating status reported by any unit
in the tested group. Individual system status results other than GO, PBIT GO, IN TEST, SF TEST,
and OP GO are displayed with a system acronym in the center of the display. If the equipment list is
too long to be displayed on one page, a PAGE pushbutton is displayed. Pressing PAGE displays the
remainder of the list that is on page 2. Pressing PAGE when page 2 is displayed returns page 1.
2.21.3.3.2 Equipment Groups. Initiated BIT of entire equipment groups is performed by selecting
SELBIT (SELBIT option becomes boxed) on the BIT top level display and the desired equipment
Figure 2-52. Caution/Advisory Displays
A1-F18EA-NFM-000
I-2-162 ORIGINAL
Figure 2-53. BIT Control Display (Sheet 1 of 2)
A1-F18EA-NFM-000
I-2-163 CHANGE 1
　
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