Section 6-Lru Replacement Procedures; Accessing Lrus - Garmin CIRRUS PERSPECTIVE SR20 Line Maintenance Manual

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LRU REPLACEMENT PROCEDURES
LRUs must be configured and tested after removal and replacement. Refer to
Section 7.
This section contains replacement procedures for a defective LRU. Replacement of an LRU is on
condition of failure.
6.1 ACCESSING LRUs
Refer to the installation and outline drawings in each LRU installation manual for detailed
installation/removal information.
Before removing any LRU, verify the LRU software part number and version against the
software configuration listed in the Required Equipment List.
To check an LRU software part number and/or version:
1. Start the system in configuration mode.
2. The System Status Page (Figure 6‐1) shows a list of LRUs in the LRU window. Activate
the cursor and use the FMS knob to scroll through the list in the window and select the
displayed LRUs.
3. The software part number and version is displayed in the DATA window. Compare this
to the software configuration in the Required Equipment List.
4. If a faulty LRU is not reporting its software version and part number, check aircraft
maintenance logs for the last software version that was loaded and verify against the
the Required Equipment List. The Software Manifest Page can also be used to check
part numbers and versions.
Figure 6‐1. System Status Page (Configuration Mode)
Cirrus Perspective™ Line Maintenance Manual
190-00920-00
SECTION 6
NOTE
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Rev. E