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ZMP controller reported descending an aircraft. A different aircraft with a similar call sign of the same company descended.
| Attributes | |
| ACN | 1383638 |
| Time | |
| Date | 201608 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZMP.ARTCC |
| State Reference | MN |
| Environment | |
| Flight Conditions | Marginal |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Small Transport Low Wing 2 Turboprop Eng |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Transport Low Wing 2 Turboprop Eng |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 17 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Inflight Event / Encounter Weather / Turbulence |
Narrative:
Aircraft X wanted to deviate west of some weather. I cleared aircraft Y to descend to 8000 feet to make room for aircraft X to deviate. Aircraft X took the clearance to 8000 feet as well as aircraft Y.I've told [multiple] airlines of the dangers of similar sounding call signs. Yet they all still file the same flight numbers. This was clearly a pilot deviation by aircraft X.
Original NASA ASRS Text
Title: ZMP Controller reported descending an aircraft. A different aircraft with a similar call sign of the same company descended.
Narrative: Aircraft X wanted to deviate west of some weather. I cleared Aircraft Y to descend to 8000 feet to make room for Aircraft X to deviate. Aircraft X took the clearance to 8000 feet as well as Aircraft Y.I've told [multiple] airlines of the dangers of similar sounding call signs. Yet they all still file the same flight numbers. This was clearly a pilot deviation by Aircraft X.
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.