Air Data & Attitude Heading Reference System (Adahrs); Electronic Flight Instrument System (Efis) - Avidyne Entegra - Piper Malibu Meridian PA-46-500TP Airplane Maintenance Manual

C. Air Data & Attitude Heading Reference System (ADAHRS) [i.e. - Attitude Heading Reference
System (AHRS)].
The two (2) ADAHRS units are located on the aft equipment shelf behind the cabin rear closeout
panel.
NOTE: When installing an ADAHRS unit; first, level the airplane per 8-20-00; and then, use
NAS 1149FN816P washers as required to level the ADAHRS unit.
(1) Magnetic Heading Compensation / Calibration
Perform the Magnetic Heading Compensation/Calibration Procedure in Magnetic Heading
Systems, Meggitt EFIS Installation, below, whenever an ADAHRS unit is installed or replaced.
NOTE: Re-calibrate both Pilot and Copilot systems at the same time, even if only one unit
was installed or replaced.
(2) Ground Test Procedure
This test procedure (included as Appendix 1 - grid 7K1) verifies the integrity and accuracy of
the air data and pitot-static systems and shows that these systems comply with the applicable
airworthiness regulations. Perform this procedure:
(a) each 24-months,
(b) to proof test the static system in accordance with FAR 23.1325 each time any connections
in static system are opened for maintenance, or
(c) following installation or maintenance on either ADAHRS unit, the primary flight display
(PFD), or the transponder Mode C interface.
3.

Electronic Flight Instrument System (EFIS) - Avidyne Entegra

WARNING: FAILURE TO CONSULT APPLICABLE VENDOR PUBLICATION(S), WHEN SERVICING
OR INSPECTING VENDOR EQUIPMENT INSTALLED IN PIPER AIRCRAFT, MAY
RENDER THE AIRCRAFT UNAIRWORTHY. SEE INTRODUCTION - SUPPLEMENTARY
PUBLICATIONS.
The Avidyne FlightMax Entegra Electronic Flight Instrument System (EFIS) is installed in
and 4697216 and up. See 28-40-00, 34-10-00, and 77-10-00 for more info.
A. Description (See Figures 2 and 5.)
This system uses three large 10.4-inch diagonal, high-resolution, sunlight-readable full color
displays (PFD and MFD), to provide primary flight and engine information as well as a wide variety
of other data. Standard primary flight instruments (i.e. - airspeed, electric attitude indicator, and
altimeter) provide redundancy.
The EFIS installation consists of the following components: Primary Flight Display (PFD),
Multifunction Display (MFD), Data Acquisition Unit (DAU), mini-DAU, and associated sensors, and
Magnetometer/OAT Sensor Assembly.
B. Maintenance
The Instructions for Continued Airworthiness (ICA) published by Avidyne provide the necessary
information for maintaining this system as installed in Piper airplanes, except as noted below.
34-20-00
PAGE 16
Apr 15/07
PIPER AIRCRAFT, INC.
PA-46-500TP, MALIBU MERIDIAN
MAINTENANCE MANUAL
S/N's 4697198,
5D10