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9 Instructions for Continued Maintenance & Operation
9.1 Limitations
•
The AV-20 system may be used for supplemental information but may not replace
any equipment required under 14 CFR 91.205.
•
The AV-20 system is not a required system and may not be used as a substitution
for the certificated aircraft system.
•
No operational credit may be taken for installation of the AV-20 system.
9.2 Internal Battery
The AV-20 incorporates a small Li-Po battery that may require replacement on an
as-desired basis. It is suggested to return the unit to the manufacturer for battery
replacement if any of the conditions are present:
AV-20 Models:
o The clock does not correctly maintain time while the aircraft is not
AV-20-S Models:
o The on-battery operation time drops below 10 minutes when operated
o The clock does not correctly maintain time while the aircraft is not
9.3 Hard Calibration
The AV-20-S utilizes internal inertial sensors for multiple purposes. These sensors
can drift out of calibration over time. The setup menu provides for a Hard Calibration
procedure that re-calibrates these sensors. Perform the Hard Calibration procedure
if any of the following conditions are observed:
AV-20 Models:
o Hard Calibration does not apply.
AV-20-S Modes:
o During power on, the AoA reference bar remains flashing (stabilizing
UAV-1003613-001
Rev D
operated.
at nominal temperatures (10°C to 30°C).
operated.
state) for more than 2 minutes.
13
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