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Cno tower controller reported of an unsafe operation when an aircraft on the downwind turned to follow the wrong aircraft.
| Attributes | |
| ACN | 1377716 |
| Time | |
| Date | 201608 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | CNO.Airport |
| State Reference | CA |
| Aircraft 1 | |
| Make Model Name | Cessna Single Piston Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Final Approach |
| Route In Use | None |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Final Approach |
| Flight Plan | VFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 2 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types |
Narrative:
Aircraft Y on ILS ry 26R cleared for low approach. Aircraft X in north pattern ry 26R. Told aircraft X extend downwind and report a cessna on a 3 mile final for ry 26R. Aircraft X said he had traffic on short final in sight. I sequenced him number 2 behind the cessna on final runway 26r. The aircraft that he had in site was another high wing aircraft for runway 26L. 20 seconds later aircraft Y asks what is the aircraft on a right base doing. I tell aircraft X to turn back to the downwind. No response. Then tell aircraft Y to turn southbound to avoid the traffic off his right. Aircraft Y turned northbound to avoid the traffic. Aircraft X then responds and said that he thought he was following the aircraft on the short final.I would make sure to clarify that the aircraft they have in sight is the correct aircraft that they are supposed to follow and also by making sure to call their base turn myself.
Original NASA ASRS Text
Title: CNO Tower Controller reported of an unsafe operation when an aircraft on the downwind turned to follow the wrong aircraft.
Narrative: Aircraft Y on ILS RY 26R cleared for low approach. Aircraft X in north pattern RY 26R. Told Aircraft X extend downwind and report a Cessna on a 3 mile final for RY 26R. Aircraft X said he had traffic on short final in sight. I sequenced him number 2 behind the Cessna on final runway 26r. The aircraft that he had in site was another high wing aircraft for runway 26L. 20 seconds later Aircraft Y asks what is the aircraft on a right base doing. I tell Aircraft X to turn back to the downwind. No response. Then tell Aircraft Y to turn southbound to avoid the traffic off his right. Aircraft Y turned northbound to avoid the traffic. Aircraft X then responds and said that he thought he was following the aircraft on the short final.I would make sure to clarify that the aircraft they have in sight is the correct aircraft that they are supposed to follow and also by making sure to call their base turn myself.
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.