Citation pilot reported a loss of GPS signal and autopilot disconnect while experiencing turbulence ...

Attributes
ACN	1717931
Time
Date	202001
Local Time Of Day	0601-1200
Place
Locale Reference	HEF.Airport
State Reference	VA
Aircraft 1
Make Model Name	Cessna Citation Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	GPS & Other Satellite Navigation
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Commercial Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 55 Flight Crew Total 3520 Flight Crew Type 412
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter Weather / Turbulence Inflight Event / Encounter Unstabilized Approach

Narrative:

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.

Original NASA ASRS Text

Title: Citation pilot reported a loss of GPS signal and autopilot disconnect while experiencing turbulence on approach.

Narrative: 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.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.