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Right-4202 pilot instructor reported they experienced a GPS anomaly; which caused an abrupt turn and GPS display failure.
| Attributes | |
| ACN | 1538625 |
| Time | |
| Date | 201804 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | TVC.Airport |
| State Reference | MI |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | M-20 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | GPS & Other Satellite Navigation |
| Person 1 | |
| Function | Instructor Pilot Not Flying |
| Qualification | Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 40 Flight Crew Total 1300 Flight Crew Type 10 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Track / Heading All Types |
Narrative:
Autopilot was using IFR certified GPS on a track direct to pln VOR and at this location; aircraft abruptly changed heading and display displayed garbage. I took controls and put us back on course. Event resolved within 3-10 seconds.I am reporting as a fellow instructor experienced something similar in this area with a different aircraft. I have a foreflight based ground track I can supply and I was on an IFR flight plan; but since it resolved almost instantly; I did not report to ATC.
Original NASA ASRS Text
Title: R-4202 pilot instructor reported they experienced a GPS anomaly; which caused an abrupt turn and GPS display failure.
Narrative: Autopilot was using IFR certified GPS on a track direct to PLN VOR and at this location; aircraft abruptly changed heading and display displayed garbage. I took controls and put us back on course. Event resolved within 3-10 seconds.I am reporting as a fellow instructor experienced something similar in this area with a different aircraft. I have a ForeFlight based ground track I can supply and I was on an IFR flight plan; but since it resolved almost instantly; I did not report to ATC.
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.