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Aviation Alerts and Advisories

Amendment to GFC 500 Part 23 AML STC SA01866WI for PA-28 Series Design Changes


Piper PA-28 aircraft with GFC 500 systems installed per the GFC 500 Part 23 AML STC SA01866WI are affected.


AML STC SA01866WI MDL Revision 8


Optional: This STC Service Bulletin may be incorporated at the owner’s discretion and is not warranty reimbursable.


This STC Service Bulletin provides instructions for incorporating the following design improvements for the installation of the GFC 500 system in PA-28 series aircraft with AML STC SA01866WI Master Drawing List Rev. 8:

  • Updated pitch and roll servo cables
  • Revised servo cable wrap instructions
  • Clarification regarding cable clamp rotation

ASDN Service Bulletin 1871