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 2020-18-51) on August 28 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, potentially leading to loss of control or conflicting information for pilots.
- Before further flight, the AD mandates revising the aircraft flight manual to prohibit IFR/night VFR operations and autopilot coupling when these affected units are installed.
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