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Aviation Alerts and Advisories

GFC 500 Vertical Speed Inertial Gain Settings

PRODUCTS AFFECTED:

GFC 500 systems installed per STC SA01866WI in the following Piper aircraft are affected:

  • PA-28R-180
  • PA-28R-200
  • PA-28R-201
  • PA-28R-201T
  • PA-28-140
  • PA-28-150
  • PA-28-151
  • PA-28-160
  • PA-28-161
  • PA-28-180
  • PA-28-181
  • PA-28-236
  • PA-28-201T
  • PA-32-260
  • PA-32-300

CERTIFICATION AUTHORIZATION:

FAA STC SA01866WI

COMPLIANCE:

Optional: This STC Service Bulletin may be incorporated at the owner’s discretion.

PURPOSE:

STC SA01866WI Master Drawing List, GFC 500 Autopilot with Electronic Stability and Protection Part 23 AML STC, Rev. 46 includes instructions to enable Vertical Speed Inertial Gain. Vertical Speed Inertial Gain improves autopilot altitude hold performance in aircraft that do not have a static system coupled to fuselage mounted static ports.

ASDN Service Bulletin 2107 Rev A