AD 2009-05-05
Unsafe Condition
PFDs may display incorrect attitude, altitude, and airspeed information, which could result in airspeed/altitude mismanagement, spatial disorientation of the pilot, loss of airplane control, inadequate traffic separation, or controlled flight into terrain.
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Required Actions
Inspect maintenance records and PFD (if necessary) to determine if an affected serial number PFD is installed. Incorporate operational limitations if necessary. Ensure the PFD passes the air data system performance verification test, receives the factory modification, or is replaced with a compliant PFD.
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Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
Avidyne Corporation Primary Flight Displays (PFDs), part numbers 700-00006-000, -001, -002, -003, and -100, with serial numbers listed in Avidyne Service Bulletin No. 601-00006-096, Revision 1, dated July 14, 2008, installed on applicable airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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