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Air carrier first officer experiences a possible GPS jamming event during approach to slc. Radio navaids are used for a successful VMC approach.
| Attributes | |
| ACN | 1157906 |
| Time | |
| Date | 201403 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | SLC.Airport |
| State Reference | UT |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | MD-82 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | Visual Approach |
| Component | |
| Aircraft Component | GPS & Other Satellite Navigation |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Night VMC with a briefed visual to [runway] 16R backed up by ILS by captain (pilot flying). Aircraft is GPS only [no IRS]. Arrival went normal. On base turn on visual approach; both of us saw map shift on nd and the captain switched to arc manual data and pressed on. Looking at it on final; my map appeared to shift several miles to right (approx 3) and terrain on GPWS also seemed shifted. [I] tried once to reload with same effect. Then back to pilot not flying duties and an uneventful landing. Entire flight had gone fine for navigation and thus appears to be some kind of GPS jamming event. Aircraft behind us reported nothing; but not sure he understood the question. Multiple notams are out for GPS jamming right now around the country. We were aware; were set up with backed up raw data; and was a non event.
Original NASA ASRS Text
Title: Air Carrier First Officer experiences a possible GPS jamming event during approach to SLC. Radio navaids are used for a successful VMC approach.
Narrative: Night VMC with a briefed visual to [Runway] 16R backed up by ILS by Captain (pilot flying). Aircraft is GPS only [no IRS]. Arrival went normal. On base turn on visual approach; both of us saw map shift on ND and the Captain switched to Arc manual data and pressed on. Looking at it on final; my map appeared to shift several miles to right (approx 3) and terrain on GPWS also seemed shifted. [I] tried once to reload with same effect. Then back to pilot not flying duties and an uneventful landing. Entire flight had gone fine for navigation and thus appears to be some kind of GPS jamming event. Aircraft behind us reported nothing; but not sure he understood the question. Multiple NOTAMs are out for GPS jamming right now around the country. We were aware; were set up with backed up raw data; and was a non event.
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.