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Flight crew of mdt having been given altitude and heading changes to break off approach caused low altitude alert at lga.
| Attributes | |
| ACN | 425463 |
| Time | |
| Date | 199901 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : lga |
| State Reference | NY |
| Altitude | msl bound lower : 1400 msl bound upper : 1600 |
| Environment | |
| Flight Conditions | IMC |
| Light | Dusk |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Navigation In Use | Other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 150 flight time total : 8500 flight time type : 1000 |
| ASRS Report | 425463 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
At approximately 1600 ft on the ILS approach to runway 4 the approach controller told us to take up a heading of 090 degrees and maintain 1400 ft. We reset our heading and altitude and departed the localizer and GS as he had instructed. However, due to our speed and rate of descent and initial confusion of his instructions, the autoplt failed to capture the altitude. The PF first officer disengaged the autoplt climb back to 1400 ft. While this was happening, the controller cleared us back to join the GS and localizer. Once established back on the ILS, the controller reported that he had received an altitude alert. Summary: this procedure by the controller was completely unacceptable at such a low altitude and after we had already received approach clearance. His directions were unexpected. It would have been better if he had told us to go 'missed.' this would have been safer.
Original NASA ASRS Text
Title: FLC OF MDT HAVING BEEN GIVEN ALT AND HDG CHANGES TO BREAK OFF APCH CAUSED LOW ALT ALERT AT LGA.
Narrative: AT APPROX 1600 FT ON THE ILS APCH TO RWY 4 THE APCH CTLR TOLD US TO TAKE UP A HDG OF 090 DEGS AND MAINTAIN 1400 FT. WE RESET OUR HDG AND ALT AND DEPARTED THE LOC AND GS AS HE HAD INSTRUCTED. HOWEVER, DUE TO OUR SPD AND RATE OF DSCNT AND INITIAL CONFUSION OF HIS INSTRUCTIONS, THE AUTOPLT FAILED TO CAPTURE THE ALT. THE PF FO DISENGAGED THE AUTOPLT CLB BACK TO 1400 FT. WHILE THIS WAS HAPPENING, THE CTLR CLRED US BACK TO JOIN THE GS AND LOC. ONCE ESTABLISHED BACK ON THE ILS, THE CTLR RPTED THAT HE HAD RECEIVED AN ALT ALERT. SUMMARY: THIS PROC BY THE CTLR WAS COMPLETELY UNACCEPTABLE AT SUCH A LOW ALT AND AFTER WE HAD ALREADY RECEIVED APCH CLRNC. HIS DIRECTIONS WERE UNEXPECTED. IT WOULD HAVE BEEN BETTER IF HE HAD TOLD US TO GO 'MISSED.' THIS WOULD HAVE BEEN SAFER.
Data retrieved from NASA's ASRS site as of July 2007 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.