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TRACON controller reported an aircraft descended faster than the controller anticipatedresulting in a MVA violation.
| Attributes | |
| ACN | 1737087 |
| Time | |
| Date | 202003 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.TRACON |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Beech 1900 |
| Operating Under FAR Part | Part 121 |
| 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) 5 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Clearance Inflight Event / Encounter CFTT / CFIT |
Narrative:
Aircraft X inbound to land ZZZ; level at 8;000 ft. I instructed aircraft X to pilot discretion maintain 2;000 ft. Between the 8;000 ft. And 2;000 ft. MVA there is a 2 mile wide section of 6;000 ft. MVA. Aircraft X descended very fast and was at 3;400 ft. On the border of the 6;000 ft. MVA leading into the 2;000 ft. MVA. The aircraft was over open water and alert given. One change could be to accurately display MVA vs actual terrain. The area aircraft X descended in is directly over open water and was no danger to the aircraft; 6;000 ft. MVA is not needed in this location. I expected the pilot to not descend rapidly; from here on; I will treat 'pd' descents with more positive control and not let this event happen again.
Original NASA ASRS Text
Title: TRACON Controller reported an aircraft descended faster than the Controller anticipatedresulting in a MVA violation.
Narrative: Aircraft X inbound to land ZZZ; level at 8;000 ft. I instructed Aircraft X to pilot discretion maintain 2;000 ft. Between the 8;000 ft. and 2;000 ft. MVA there is a 2 mile wide section of 6;000 ft. MVA. Aircraft X descended very fast and was at 3;400 ft. on the border of the 6;000 ft. MVA leading into the 2;000 ft. MVA. The aircraft was over open water and alert given. One change could be to accurately display MVA vs actual Terrain. The area Aircraft X descended in is directly over open water and was no danger to the aircraft; 6;000 ft. MVA is not needed in this location. I expected the pilot to not descend rapidly; from here on; I will treat 'PD' descents with more positive control and not let this event happen again.
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.