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e) If the ATP profile value(s) or process(s) (Pt, Ps Low ALT, Ps High ALT) are
changed, the user can select “Save” and name the ATP profile with an
appropriate name for future use.
8. Once the ATP Leak Test profile has been configured and parameters are verified
correctly, select “Run”.
Note: The Leak Test ATP is a fully automatic feature that proceeds as follows:
a) When selected, the Pt leak test will be performed. If the STATIC (Ps) port is not
at ambient Ground pressure the ATP will begin by performing a Go to Ground
function prior to starting the Pt leak test
b) When selected, the Ps Low ALT leak test will be performed.
c) When selected, the Ps High ALT leak test will be performed.
d) On completion of the last selected leak test, the Test Set will perform a Go To
Ground function.
e) Once the Test Set and aircraft or instrument(s) under test are safe at ground
“ambient” pressure, the Leak Test results will be displayed (
Figure 56).
Figure 56 Leak Test Results
f) Record the leak test results.
g) If additional leak test at other altitudes or airspeeds is required, select the
appropriate ATP Leak Test profile, edit the values and repeat steps 8 and 9
above for any additional test points.
9. This completes the Combined ATP Leak Test process.
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