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

Page: 1487 / 1956

PAGE 17
Feb 28/07 7I17
77-40-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
1 When an analog indicator is in exceedance, its red or yellow LED will illuminate and
remain on until the unit is no longer in exceedance.
2 The external audible alarm will sound and the LCD display will flash until the operator
acknowledges each exceedance by pressing the switch adjacent to the exceeding
instrument.
(b) During the entirety of the exceedance (up to 10 minutes or 599.9 seconds), the QDI/EDI
will record the peak value of the exceedance, the average value of the exceedance, and
the time duration of the exceedance. This data is stored in non-volatile memory for future
recall.
(c) If more than one exceedance occurs at the same time, all will be recorded in the non-
volatile memory with only the last exceedance being displayed. The operator must
acknowledge each exceedance to mute the external audible alarm. Acknowledgment of
each exceedance can be random.
(12) Exceedance Review Mode
(a) The QDI/EDI contains non-volatile memor y for future examination of recorded
exceedances. The memory size is sufficient to record a total of 238 exceedance events.
Each event contains the Peak, Average and Time duration of exceedance. The
exceedance history is presented in reverse chronological order for each indicator during
review, with the most recent exceedance event listed first.
CAUTION: WHEN THE MEMORY ALLOCATED FOR EXCEEDANCE RECORDING IS
FULL, NO NEW EXCEEDANCES WILL BE RECORDED. IT WILL BE
NECESSARY FOR THE OPERATOR TO HAVE A QUALIFIED MECHANIC
PERIODICALLY RESET THIS MEMORY. THIS MEMORY CAN BE RESET
BY USE OF THE REMOTE SECURITY RESET SWITCH. REFER TO
PARAGRAPHS C(1), ABOVE, AND M, BELOW.
(b) To enter the exceedance review mode, depress both right hand buttons (with the word
"EXCEED" between them) on the front of the QDI/EDI. The operator can exit this mode at
any time by selecting any analog indicator.
(c) Display Messages
1 The QDI/EDI will post four possible messages during the exceedance review
operation.
a "E Clr" (See Figure 9, View A)
This message indicates that no exceedances were found in the exceedance
memory.
b "END ind" (See Figure 9, View B)
This message indicates that all of the exceedance events for the indicator under
examination have been displayed.
c "END ALL" (See Figure 9, View C) This message indicates that all of the
exceedance events for all indicators have been displayed.
d "END ind" and "E FUL" (See Figure 9, View D)
These messages indicate that all of the exceedance events for the indicator under
examination have been displayed and exceedance memory is full.