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SR22 pilot reported the loss of GPS information led to incorrect airport information; a false terrain warning; and an airborne traffic conflict.
| Attributes | |
| ACN | 1599670 |
| Time | |
| Date | 201812 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | CHD.Airport |
| State Reference | AZ |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | SR22 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Final Approach |
| Route In Use | Direct Visual Approach |
| Flight Plan | None |
| Component | |
| Aircraft Component | GPS & Other Satellite Navigation |
| Person 1 | |
| Function | Pilot Flying Single Pilot |
| Qualification | Flight Crew Instrument Flight Crew Private |
| Experience | Flight Crew Last 90 Days 23 Flight Crew Total 330 Flight Crew Type 334 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter CFTT / CFIT |
Narrative:
On final; I was lined up for [runway] 4L. I lost GPS which immediately resulted in taws warnings (pull up; pull up; etc) with the mfd map showing the wrong airport. This is my home airport; I knew where I was. While lined up for [runway] 4L; tower asked me to confirm I was lined up for [runway] 4L; the correct runway. I confirmed I was lined up; the mfd showing the wrong airport; asked to ident; and then I panicked and thought I must be at one of the other nearby airports. I asked if tower could see me and with the delayed response; I deviated from approach assuming they could not see me; which caused the issue with landing traffic.
Original NASA ASRS Text
Title: SR22 pilot reported the loss of GPS information led to incorrect airport information; a false terrain warning; and an airborne traffic conflict.
Narrative: On final; I was lined up for [Runway] 4L. I lost GPS which immediately resulted in TAWS warnings (pull up; pull up; etc) with the MFD map showing the wrong airport. This is my home airport; I knew where I was. While lined up for [Runway] 4L; Tower asked me to confirm I was lined up for [Runway] 4L; the correct runway. I confirmed I was lined up; the MFD showing the wrong airport; asked to ident; and then I panicked and thought I must be at one of the other nearby airports. I asked if Tower could see me and with the delayed response; I deviated from approach assuming they could not see me; which caused the issue with landing traffic.
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.