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Slc tower controller reported an aircraft took a wider than expected turn; resulting in the aircraft going into a lower MVA.
| Attributes | |
| ACN | 1622663 |
| Time | |
| Date | 201903 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | SLC.Tower |
| State Reference | UT |
| Aircraft 1 | |
| Make Model Name | Embraer Legacy 450/500 |
| Flight Phase | Other VFR Traffic Pattern |
| Flight Plan | VFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 3 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter CFTT / CFIT |
Narrative:
Aircraft X was doing right closed traffic to runway 35 and was issued at or below 5;500 feet which is our standard procedure. I reiterated the altitude as a C172 would be transitioning the airspace above him at 6;000 feet. Aircraft X took a very wide crosswind to downwind turn and briefly ended up in an area below the MVA; MSA; or minimum IFR altitude as they corrected back closer to the field.I did not anticipate aircraft X flying their downwind that far to the east. In hindsight I could have controlled their downwind closer to the field since traffic above would not allow for a climb. After thinking about it I called the C172 traffic to aircraft X when they were on the crosswind and that may have in turn delayed their downwind turn as they were looking for the traffic. The traffic call may have been more appropriate after they turned downwind since I already told them about the traffic once before.
Original NASA ASRS Text
Title: SLC Tower Controller reported an aircraft took a wider than expected turn; resulting in the aircraft going into a lower MVA.
Narrative: Aircraft X was doing right closed traffic to Runway 35 and was issued at or below 5;500 feet which is our standard procedure. I reiterated the altitude as a C172 would be transitioning the airspace above him at 6;000 feet. Aircraft X took a very wide crosswind to downwind turn and briefly ended up in an area below the MVA; MSA; or minimum IFR altitude as they corrected back closer to the field.I did not anticipate Aircraft X flying their downwind that far to the east. In hindsight I could have controlled their downwind closer to the field since traffic above would not allow for a climb. After thinking about it I called the C172 traffic to Aircraft X when they were on the crosswind and that may have in turn delayed their downwind turn as they were looking for the traffic. The traffic call may have been more appropriate after they turned downwind since I already told them about the traffic once before.
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.