Section 9-Periodic Maintenance; Maintenance Intervals; Recommended Tools; General Maintenance Procedures - Garmin CIRRUS PERSPECTIVE SR20 Line Maintenance Manual

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This section contains periodic maintenance procedures. Removal and replacement of an LRU is
on condition of failure.
9.1 MAINTENANCE INTERVALS
Refer to the Cirrus maintenance documentation for maintenance tasks that are required to be
performed at certain intervals.
9.2 RECOMMENDED TOOLS
Use the following tools to perform the maintenance tasks described in this section:
• Voltmeter capable of measuring 0‐32 Volts DC
• Phillips Screwdriver
•
3/32 inch Hex Tool
• Digital Level with 0.25 degrees of accuracy capability
• VHF NAV/COM/ILS Ramp Tester
• Transponder Ramp Tester including Mode S capability for Mode S transponder equipped
aircraft
• Air Data Test Set (ADTS) capable of simulating altitude up to the aircraft's service ceiling
• GPS Indoor Repeater (if outside GPS signals cannot be acquired)
• Headset/Microphone
9.3 GENERAL MAINTENANCE PROCEDURES
Pitot/Static Leak Test
Before starting the pitot static test, allow the GDC to operate at least 15 minutes according to
Garmin Service Advisory 0608. Perform a pitot/static leak test as described in Title 14 CFR §§
91.411 and Part 43 Appendix E.
Altimeter (GDC and PFD)
According to Part 43 Appendix E, paragraph (b)(2), Garmin specifies a test procedure equivalent
to Part 43 Appendix E, paragraph (b)(1) with two exceptions. The tests of sub‐paragraphs (iv;
Friction) and (vi; Barometric Scale Error) are not applicable because the digital outputs of the
GDC are not susceptible to these types of errors.
Airspeed Function Test (GDC and PFD)
Check for correct indication.
Vertical Speed Indicator (GDC and PFD)
Check for correct indication.
Cirrus Perspective™ Line Maintenance Manual
190-00920-00
SECTION 9
PERIODIC MAINTENANCE
Page 9-1
Rev. E