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Sna tower controller reports of the asde-X not reporting an aircraft over the threshold while an aircraft is on the runway.
| Attributes | |
| ACN | 1199268 |
| Time | |
| Date | 201408 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | SNA.Airport |
| State Reference | CA |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Helicopter |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Final Approach |
| Route In Use | None |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | Taxi |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 1 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict |
Narrative:
Aircraft X was on approach to runway 19L when local 1 coordinated a crossing of an aircraft. When the aircraft was exiting 19L to hold short of 19R aircraft X appeared on the asde-X to be over the threshold but was on short final. The asde-X never went off and since we could visually see aircraft X he continues his approach. In this situation even though he was on final the asde should have alerted us. It was enough to make myself and other controllers concerned about our equipment and lack of safety. If certain equipment is used for safety it should be tested and checked regularly.
Original NASA ASRS Text
Title: SNA Tower Controller reports of the ASDE-X not reporting an aircraft over the threshold while an aircraft is on the runway.
Narrative: Aircraft X was on approach to runway 19L when Local 1 coordinated a crossing of an aircraft. When the aircraft was exiting 19L to hold short of 19R Aircraft X appeared on the ASDE-X to be over the threshold but was on short final. The ASDE-X never went off and since we could visually see Aircraft X he continues his approach. In this situation even though he was on final the ASDE should have alerted us. It was enough to make myself and other controllers concerned about our equipment and lack of safety. If certain equipment is used for safety it should be tested and checked regularly.
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.