Cessna Citation Undifferentiated or Other Model
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Commercial; Flight Crew Multiengine
Flight Crew Last 90 Days 55; Flight Crew Total 3520; Flight Crew Type 412
Aircraft Equipment Problem Less Severe; Deviation - Altitude Excursion From Assigned Altitude; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Weather / Turbulence; Inflight Event / Encounter Unstabilized Approach
Air Traffic Control Issued New Clearance
ATC Equipment / Nav Facility / Buildings; Weather
During he RNAV approach I lost GPS reception; that resulted in a autopilot disconnect or the disconnect was a result of the moderate to severe turbulence at the same time. As result I deviated from the approach course and altitudes. Potomac [Approach] saw this and issued vectors; so I could try the approach again.
Citation pilot reported a loss of GPS signal and autopilot disconnect while experiencing turbulence on approach.