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Tower controller reported they missed an aircraft reading back the wrong turn direction due to noise from a fan and the aircraft flew below the minimum vectoring altitude.
| Attributes | |
| ACN | 1756950 |
| Time | |
| Date | 202008 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | SLC.Tower |
| State Reference | UT |
| Aircraft 1 | |
| Make Model Name | PA-46 Malibu Meridian |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Climb |
| Route In Use | Other Go Around |
| Flight Plan | IFR |
| Person 1 | |
| Function | Local |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 14 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter CFTT / CFIT |
Narrative:
Shortly after a forced go around to traffic touching down from an erroneous asde (airport surface detection equipment) alert an aircraft departed on an assigned heading of 340 on a radar vector. I thought the pilot read back correct heading. I noticed the pilot had turned east just shortly after departure. I turned the pilot back to the west but they were already below the minimum vectoring altitude (MVA). The pilot was eventually turned to a correct heading outside of the MVA. There was a lot of back ground noise in the tower cab due to a fan that had to be placed in the cab due to the air conditioning not working correctly. Also working on disseminating information from the previous asde alert may have caused to miss the correct heading read back. I tried to listen to the audio but the falcon replay would not load the audio. Fix the air conditioner to avoid excess noise.
Original NASA ASRS Text
Title: Tower Controller reported they missed an aircraft reading back the wrong turn direction due to noise from a fan and the aircraft flew below the Minimum Vectoring Altitude.
Narrative: Shortly after a forced go around to traffic touching down from an erroneous ASDE (Airport Surface Detection Equipment) alert an Aircraft departed on an assigned heading of 340 on a radar vector. I thought the pilot read back correct heading. I noticed the pilot had turned east just shortly after departure. I turned the pilot back to the west but they were already below the Minimum Vectoring Altitude (MVA). The pilot was eventually turned to a correct heading outside of the MVA. There was a lot of back ground noise in the tower cab due to a fan that had to be placed in the cab due to the air conditioning not working correctly. Also working on disseminating information from the previous ASDE alert may have caused to miss the correct heading read back. I tried to listen to the audio but the FALCON replay would not load the audio. Fix the air conditioner to avoid excess noise.
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.