INSTRUMENTS (AND AVIONICS) / PITOT-STATIC-ANGLE OF ATTACK (AOA) SYSTEM 13-79
CHANGE C2 ICON A5 / MAINTENANCE MANUAL
RELATED INFORMATION:
"Pitot-Static-AOA Leak Test Procedures" on page 13-70
13.8.1.1.3 AOA System Testing
Instructions for conducting the pitot-static-AOA leak check with the test equipment.
CAUTION: The airspeed and altimeter are delicate instruments. Care must be
taken when applying pressure to the pitot-static system to avoid
pressures and rapid changes of pressure that could damage the
instruments.
1. Prepare the Preston Pressure Pitot-Static Tester Model PS-525 for use.
2. Connect the static port hose to Vacuum side of the PS-525 unit.
NOTE: The static port hose has barbed fitting reducer to a smaller hose on
one end along with a BFST26-820 fitting at the end.
3. Locate the upper AOA port on the left wing mid span. Using ITW Tacky tape, secure the
BFST26-820 connector to the upper wing surface ensuring there is no air leak around the AOA
port.
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