Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 1473 / 1956

PAGE 3
Feb 28/07 7I3
77-40-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
3 Exceedance Characteristics
The "Red Line" (if present) on the dial face corresponds to a preset limit for that
parameter. If the reading exceeds the preset customer specified limit (that may differ
from the Red Radial for more than a specified time delay, the red or yellow LED
corresponding to that indicator will illuminate and the external audible alarm will
sound. The QDI/EDI will automatically select the exceeding indicator to be displayed
digitally. This will turn on the green LED for that indicator. The audible alarm will
remain on until the reading moves to the normal range, or the select switch next to
the parameter in exceedance is pressed. This will mute the external alarm. The red or
yellow LED will remain on until the reading returns to the normal range. Once the
parameter in exceedance is acknowledged, the exceeding indicator will return to its
normal display operation.
4 Retrieval of Exceedances Characteristics
The QDI/EDI stores data concerning an exceedance event which can be retrieved at
any time. While the QDI/EDI is displaying this data, both LEDs will flash on the
analog indicator corresponding to that data.
5 Self-Test Characteristics
a Power Up - See Power Up Characteristics, above.
b Manual - With power applied to the system, press the adjacent select button of
the indicator to be tested for two seconds. The indicator's pointer will drive to 9
o'clock and both LEDs will illuminate. Continue to press button (approx. 5
seconds more) until the external alarm sounds. The audible alarm will remain
activated until the select button is released. During this test the digital display
will continue to display the actual indicator value.
(3) Troubleshooting
See Chart 1.