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Tower controller described an unauthorized runway entry event resulting in a directed go around. The reporter questioned the functionality of the asde-X equipment.
| Attributes | |
| ACN | 996503 |
| Time | |
| Date | 201203 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 170/175 ER/LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Developmental |
| Person 2 | |
| Function | Supervisor / CIC |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types Conflict Ground Conflict Critical |
Narrative:
I was working local west (arrivals) to runway xxr when I noticed a target on the asde-X. We tend to get erroneous targets periodically and expected it to go off. When it didn't; air carrier X was short final (100 ft) and I sent the aircraft around with the advisory of a 'target' on the asde-X. The weather was 400 ovc; 1 ½ miles visibility. Fog obscured the first half of the runway so I wasn't able to visually see the vehicle out the window. After issuing the go around; local east advised he had a vehicle in sight. We watched in horror as the out of control vehicle continued down runway xxr; through the grass onto taxiway sierra; crossed runway yy; and entered runway xxl. By this time; we had shut the airport down. The airport vehicle and police intercepted the vehicle at the approach end of runway xxl and apprehended the intoxicated driver. We had about 10 aircraft in the hold and approximately 15 aircraft waiting for departure. The asde-X never went off because the vehicle was traveling the same direction and didn't recognize a conflict.
Original NASA ASRS Text
Title: Tower Controller described an unauthorized runway entry event resulting in a directed go around. The reporter questioned the functionality of the ASDE-X equipment.
Narrative: I was working Local West (arrivals) to Runway XXR when I noticed a target on the ASDE-X. We tend to get erroneous targets periodically and expected it to go off. When it didn't; Air Carrier X was short final (100 FT) and I sent the aircraft around with the advisory of a 'target' on the ASDE-X. The weather was 400 OVC; 1 ½ miles visibility. Fog obscured the first half of the runway so I wasn't able to visually see the vehicle out the window. After issuing the go around; Local East advised he had a vehicle in sight. We watched in horror as the out of control vehicle continued down Runway XXR; through the grass onto Taxiway Sierra; crossed Runway YY; and entered Runway XXL. By this time; we had shut the airport down. The airport vehicle and police intercepted the vehicle at the approach end of Runway XXL and apprehended the intoxicated driver. We had about 10 aircraft in the hold and approximately 15 aircraft waiting for departure. The ASDE-X never went off because the vehicle was traveling the same direction and didn't recognize a conflict.
Data retrieved from NASA's ASRS site as of July 2013 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.