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Tracon controller coordinated with tower a cessna flying to a nearby satellite airport. Tower controller clears a B747 for takeoff which conflicts with the cessna. Tower and TRACON controllers reported they expected the other party to take different action.
| Attributes | |
| ACN | 914541 |
| Time | |
| Date | 201010 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Flight Phase | Descent |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Departure |
| Qualification | Air Traffic Control Fully Certified |
| Person 2 | |
| Function | Handoff / Assist |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy |
Narrative:
A C172 IFR inbound to ZZZ1 was on vectors for a visual approach and had been pointed out to ZZZ tower and ZZZ2 tower to pass south and east of ZZZ at 3;000. Towers approved point out then a B747 departed ZZZ runway 14 and checked on climbing to 4;000 and was on a converging course with the C172 south of the airport. Traffic was immediately exchanged but the C172 did not have the B747 in sight. The C172 was given an immediate right turn to 090 and the B747 was given an immediate right turn to 270. Targets passed and conflict alert activated. The C172 then stated that he had the B747 in sight but separation had already been lost.
Original NASA ASRS Text
Title: Tracon Controller coordinated with Tower a Cessna flying to a nearby satellite airport. Tower Controller clears a B747 for takeoff which conflicts with the Cessna. Tower and TRACON Controllers reported they expected the other party to take different action.
Narrative: A C172 IFR inbound to ZZZ1 was on vectors for a visual approach and had been pointed out to ZZZ Tower and ZZZ2 Tower to pass south and east of ZZZ at 3;000. Towers approved point out then a B747 departed ZZZ Runway 14 and checked on climbing to 4;000 and was on a converging course with the C172 south of the airport. Traffic was immediately exchanged but the C172 did not have the B747 in sight. The C172 was given an immediate right turn to 090 and the B747 was given an immediate right turn to 270. Targets passed and Conflict Alert activated. The C172 then stated that he had the B747 in sight but separation had already been lost.
Data retrieved from NASA's ASRS site as of April 2012 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.