 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Tower controller; flight instructor and student pilot reported a miscommunication and misidentification that led to near-mid-air-collision.
| Attributes | |
| ACN | 1402107 |
| Time | |
| Date | 201611 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | PRC.Tower |
| State Reference | AZ |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Small Aircraft High Wing 1 Eng Fixed Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Climb |
| Route In Use | None |
| Flight Plan | None |
| Aircraft 2 | |
| Make Model Name | Small Aircraft High Wing 1 Eng Fixed Gear |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Route In Use | None |
| Flight Plan | VFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 5 |
| Person 2 | |
| Function | Trainee |
| Qualification | Flight Crew Student |
| Experience | Flight Crew Last 90 Days 20 Flight Crew Total 20 Flight Crew Type 20 |
| Events | |
| Anomaly | ATC Issue All Types Conflict NMAC |
Narrative:
Aircraft X was upwind from runway 21R in the pattern doing short approaches. Aircraft X reported turning crosswind at the campus. Aircraft Y was following aircraft X in the pattern. Aircraft Y was having problems with his transmissions being cut out during his entire pattern work and I did advise him of this problem. Aircraft Y was told to follow aircraft X abeam the campus on right crosswind. Aircraft Y replied with a broken transmission. I advised aircraft Y of this issue. About 30 seconds later I told aircraft Y the aircraft he was following was ahead to his right turning downwind. He reported the traffic in sight. There was another aircraft passing aircraft Y directly behind him on the downwind. I returned to the runway and final and cleared another aircraft. Right after that aircraft X declared a near midair collision.
Original NASA ASRS Text
Title: Tower Controller; flight instructor and student pilot reported a miscommunication and misidentification that led to near-mid-air-collision.
Narrative: Aircraft X was upwind from Runway 21R in the pattern doing short approaches. Aircraft X reported turning crosswind at the campus. Aircraft Y was following Aircraft X in the pattern. Aircraft Y was having problems with his transmissions being cut out during his entire pattern work and I did advise him of this problem. Aircraft Y was told to follow Aircraft X abeam the campus on right crosswind. Aircraft Y replied with a broken transmission. I advised Aircraft Y of this issue. About 30 seconds later I told Aircraft Y the aircraft he was following was ahead to his right turning downwind. He reported the traffic in sight. There was another aircraft passing Aircraft Y directly behind him on the downwind. I returned to the runway and final and cleared another aircraft. Right after that Aircraft X declared a NMAC.
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.