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7. Using the AMM or CMM, select the appropriate Leak Test ATP Leak Test Profile
a) From Main Menu, select Leak Testing. The Leak Testing panel opens.
b) Touch ATP Leak Test Profiles. The ATP Leak Profiles panel is displayed.
c) Select the appropriate profile to perform the Leak Test as specified by the AMM or
CMM.
d) If required, the default ATP profile can be selected and the parameters can be
changed to the values specified by the AMM or CMM.
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
correct, 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 (see 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 or edit the values in the repeat steps 8 and 9
above for any additional test points.
9. This completes the Combined ATP Leak Test process.