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Denver TRACON controller reported an aircraft reading back the correct altitude but not descending to the correct altitude as assigned.
| Attributes | |
| ACN | 1644347 |
| Time | |
| Date | 201905 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | D01.TRACON |
| State Reference | CO |
| Aircraft 1 | |
| Make Model Name | T6A Texan II / Harvard II (Raytheon) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Descent |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Person 1 | |
| Function | Approach |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 7 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Clearance Inflight Event / Encounter CFTT / CFIT |
Narrative:
Aircraft X was inbound to apa from the southeast. I put him on a 260 heading and descended him to 090 because he was pointed at the 085 MVA. His read back was 090. I noticed him at 078 so I said climb and maintain 090; he did not respond. I issued a low altitude alert and climbed him immediately to 090. This time responded and said he was climbing. He said he had heard 070. I went and listened to it when I went on break and he read back 090. Pilot listening better.
Original NASA ASRS Text
Title: Denver TRACON Controller reported an aircraft reading back the correct altitude but not descending to the correct altitude as assigned.
Narrative: Aircraft X was inbound to APA from the southeast. I put him on a 260 heading and descended him to 090 because he was pointed at the 085 MVA. His read back was 090. I noticed him at 078 so I said climb and maintain 090; he did not respond. I issued a low altitude alert and climbed him immediately to 090. This time responded and said he was climbing. He said he had heard 070. I went and listened to it when I went on break and he read back 090. Pilot listening better.
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.