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An A320 first officer reported an apparent anomaly in the GPWS system when they got an invalid terrain alert on visual approach to pdx.
| Attributes | |
| ACN | 1273301 |
| Time | |
| Date | 201506 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | PDX.Tower |
| State Reference | OR |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | GPWS |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 67 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
After cleared for visual to runway 28R at 2;500 feet; we began visual turn to final; and descended. We received a GPWS alert and although it seemed unlikely; the captain correctly climbed per SOP. The alert stopped and we resumed the visual approach uneventfully. We reviewed the terrain after landing and saw no threats that should have set off the alert. It is worth noting that [another] arrival behind us experienced the same alert; which we heard them report on the tower frequency.
Original NASA ASRS Text
Title: An A320 First Officer reported an apparent anomaly in the GPWS system when they got an invalid terrain alert on visual approach to PDX.
Narrative: After cleared for visual to Runway 28R at 2;500 feet; we began visual turn to final; and descended. We received a GPWS alert and although it seemed unlikely; the Captain correctly climbed per SOP. The alert stopped and we resumed the visual approach uneventfully. We reviewed the terrain after landing and saw no threats that should have set off the alert. It is worth noting that [another] arrival behind us experienced the same alert; which we heard them report on the tower frequency.
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.