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N90 TRACON controller reported a low altitude alert after clearing an aircraft for an ILS approach and handing off the aircraft to tower.
| Attributes | |
| ACN | 1520763 |
| Time | |
| Date | 201802 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | N90.TRACON |
| State Reference | NY |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B747-800 Advanced |
| Flight Phase | Final Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Approach |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 9 |
| Events | |
| Anomaly | Airspace Violation All Types Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter CFTT / CFIT |
Narrative:
I worked aircraft X from the center down to the final. He requested to land ILS 4L and I told him to expect that approach. When he got a little closer to the field the tower called and requested that I give aircraft X ILS 4R due to departures waiting to leave on 4L. I told aircraft X about the change in approach. When he was south of the field I cleared aircraft X to cross zetal at 1;500 ft; cleared him for the ILS 4R approach; and switched him over to the tower. I saw aircraft X start his turn early and thought he had picked up the field visually and the tower had cleared him in as such. The low altitude alert sounded with aircraft X at 600 ft and three miles east of the final approach course. At which point I called the tower and heard him issuing a low altitude alert to aircraft X; at which point it began to climb back up.I am not sure as to what caused aircraft X to completely miss the final approach course and fly inbound as they did. However I should have called the tower to confirm if they had changed aircraft X over to a visual approach when the early turn occurred.
Original NASA ASRS Text
Title: N90 TRACON Controller reported a low altitude alert after clearing an aircraft for an ILS approach and handing off the aircraft to tower.
Narrative: I worked Aircraft X from the center down to the final. He requested to land ILS 4L and I told him to expect that approach. When he got a little closer to the field the tower called and requested that I give Aircraft X ILS 4R due to departures waiting to leave on 4L. I told Aircraft X about the change in approach. When he was south of the field I cleared Aircraft X to cross ZETAL at 1;500 ft; cleared him for the ILS 4R approach; and switched him over to the tower. I saw Aircraft X start his turn early and thought he had picked up the field visually and the tower had cleared him in as such. The low altitude alert sounded with Aircraft X at 600 ft and three miles east of the final approach course. At which point I called the tower and heard him issuing a low altitude alert to Aircraft X; at which point it began to climb back up.I am not sure as to what caused Aircraft X to completely miss the final approach course and fly inbound as they did. However I should have called the tower to confirm if they had changed Aircraft X over to a visual approach when the early turn occurred.
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.