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PA-28-181, ARCHER
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SECTION 4 - NORMAL PROCEDURES
4.Se BEFORE T AXllNG
SECTION9
SUPPLEMENT 9
A VION MASTER Switch ....... , ... , ......................................................... ON
Ao A Indicator. ......................... , ............................... VERIFY SELF TEST
AoA Indication ............................................. lights illuminated (not blank)
NOTE
If AoA indications are suspected to not be accurate,
discontinue use of the AoA Indicator.
NOTE
If the AoA Indicator screen turns off after
the power-on self-test, check that the AOA
INDICATOR circuit breaker is pushed in.
4.Si BEFORE TAKEOFF
AoA Reference Marker ..................................................... SET (if desired)
ISSUED: December 22, 2017
REVISED: March 27, 2020
REPORT: VB-2749
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