EMERGENCY
NOTE
• The alternate static air source should be used for conditions where the normal static source has been obstructed.
Whenever any obstruction exists in the Normal Static Air System, or the Alternate Static Air System is desired for use:
1. Pilot's Alternate Static Air Source - Switch to ON ALTERNATE (lower sidewall adjacent to pilot)
2. For Airspeed Calibration and Altimeter Correction, refer to PERFORMANCE section.
• NOTE: The alternate static air valve should remain in the OFF NORMAL position when system is not needed.