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38-25 ORIGINAL
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Figure 38-11. Format Examples
ORIGINAL 36-26
NAVAIR 01.F14AAD-1
1. In-flight/preflight test sequences are initiated
through the OBC basic format by pressing the
TEST pushbutton while the aircraft is on the
ground or airborne. Depending on the Sight status,
either the in-Sight or preflight test sequence will
be initiated (refer to BIT interlocks/restrictions).
2. If interlock conditions/restrictions are not satisfied,
testing will not be initiated and a computer
message will be displayed to indicate the reason
for rejection. Refer to paragraph 38.3.3.2.3 for
computer message descriptions.
3. If interlock conditions are satisfied, the TEST
pushbutton legend is boxed to indicate a valid test
selection and BIT is initiated in parallel or in sequential
order for all WRAs in the sequencet hat
are powered on and ready.
4. Nominal tests equenceti me for preflight is 69 seconds,
and in flight is 35 seconds. (Note: Test times
may vary as a function of equipment status.)
5. Reselecting the TEST pushbutton while the sequencei
s in progressw ill terminatet est for WRAs
that are still in test. WRAs that cannot be terminated
will continue in test until normal completion.
When all WRAs have completed test, the TEST
pushbutton legend is unboxed to indicate that the
sequenceis no longer in progress.
6. The retest sequence is initiated through the OBC
basic format by pressing the RETEST pushbutton
while the aircrafi is on the ground or airborne.
WRAs are selected by the system for retest if the
last entry in the FHF indicates a NOT READY
status and if individual equipment interlocks are
satisfied Refer to BIT interlocks/restrictions for
the equipment applicable to this sequence.
7. If interlock conditions/restrictions are not satisfied,
testing will not be initiated. Refer to paragraph
38.3.3.2.3 for computer message
descriptions.
8. If the interlock conditions are satisfied, the RETEST
pushbutton is boxed to indicate a valid test
selection and BIT is initiated in parallel or in sequential
order for all WRAs in the sequencet hat
are powered on and ready.
9. At the completiono f the RETEST sequencet,h e last
FHF entry (mdicating NOT READY) will be removed
from theF HF for all equipment hatc urrently
indicates a status other tban NOT READY.
10. Nominal test time varies based on the mix of
equipment. Maximum test time is 35 seconds.
(Note: Test times may vary as a function of equip
ment status.)
11. Reselecting the RETEST pushbutton while the sequence
is in progress will terminate test for equip
ment still in test. Equipment that cannot be
terminated will continue in test to normal comple
tion. When all tests are completed, the RETEST
pushbutton is unboxed to indicate that the sequence
is no longer in progress.
38.3.3.2.2 Function Group/Unit Test OBC functional
group formats allow groups of tbnctionally related
or individual (i.e., unit) WRAs to be selected for test.
Refer to Figure 38-8. The OBC functional group formats
are accessible 8om the OBC basic format: FLT, CNI,
NAV, CD, AUX, SNSR, SMS, EW, and TAC.
Croup tests am initiated with the respective OBC
functional group format by pressing the ALL and
TEST pushbuttons. The ALL pushbutton legend is
boxed to indicate its selection and is unboxed when
deselected. Croup testing is only initiated if the ALL
pushbutton is boxed prior to making the selection of
the TEST pushbutton. Depending on flight status, all
WRAs that satisfy individual interlock conditions will
be initiated into test. Refer to Figure 38-7 for group
test selects.
1. If interlock conditions/restrictionsa re not satisfied
for at least one WRA, testing will not be initiated.
2. If interlock conditions are satisfied for at least one
WRA, the TEST pushbutton legend is boxed on
the applicable OBC functional group format to
indicate a valid test selection and BIT is initiated
in parallel or in sequential order for all powered-on
and ready WRAs in the sequence.
3. Nominal test times may vary as a function of the
selected functional group and are based on the
equipment initiated to test (refer to Figure 38-4).
　
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