On August 28, the FAA published an emergency airworthiness directive (AD) 2020-18-51 for certain Sandia attitude indicators with a part number (P/N) 306171-10 or 306171-20 installed, as well as those marketed as BendixKing Model KI-300 or Sandia Model SAI-340A.
Emergency AD Issued For Sandia & BendixKing Attitude Indicators
Key Takeaways:
- The FAA issued an emergency Airworthiness Directive (AD) for specific Sandia attitude indicators (P/N 306171-10, -20, BendixKing KI-300, Sandia SAI-340A).
- This AD was prompted by 54 reported failures of these units, which provide erroneous attitude data, posing a significant risk of loss of aircraft control due to faulty aeronautical decision-making.
- The AD mandates, before further flight, revising the airplane flight manual to prohibit IFR or night VFR operations and autopilot coupling with the affected attitude indicators.
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