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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Approach controller technique communication vigilance descended wrong aircraft. Same company similar #'south.
| Attributes | |
| ACN | 182453 |
| Time | |
| Date | 199106 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : clt |
| State Reference | NC |
| Altitude | msl bound lower : 8500 msl bound upper : 9000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : clt tower : srq |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 182453 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : published procedure non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
We were on approach frequency 127.7 at 9000 with a call sign of air carrier xx. We were positively changed to frequency 126.15 and given descent to 6000 ft simultaneously. While passing through 8500 ft for 6000 ft we contacted approach on frequency 126.15 and reported descending to 6000 ft. They queried our altitude and told us to climb immediately to 9000 ft and to report back on frequency 127.7. We complied and no conflict was noted. Approach control was also working air carrier xy. Approach control faulted by issuing the 6000 ft descent to us instead of air carrier xy. We positively read back all instructions and complied. Approach control simply confused aircraft call signs. Fortunately our aircraft was TCAS equipped. We asked controller on frequency 126.15 if there was a problem. Controller stated, 'no problem, no fault'. We ascertain from his statement that we made no error.
Original NASA ASRS Text
Title: APCH CTLR TECHNIQUE COM VIGILANCE DSNDED WRONG ACFT. SAME COMPANY SIMILAR #'S.
Narrative: WE WERE ON APCH FREQ 127.7 AT 9000 WITH A CALL SIGN OF ACR XX. WE WERE POSITIVELY CHANGED TO FREQ 126.15 AND GIVEN DSCNT TO 6000 FT SIMULTANEOUSLY. WHILE PASSING THROUGH 8500 FT FOR 6000 FT WE CONTACTED APCH ON FREQ 126.15 AND RPTED DSNDING TO 6000 FT. THEY QUERIED OUR ALT AND TOLD US TO CLB IMMEDIATELY TO 9000 FT AND TO RPT BACK ON FREQ 127.7. WE COMPLIED AND NO CONFLICT WAS NOTED. APCH CTL WAS ALSO WORKING ACR XY. APCH CTL FAULTED BY ISSUING THE 6000 FT DSCNT TO US INSTEAD OF ACR XY. WE POSITIVELY READ BACK ALL INSTRUCTIONS AND COMPLIED. APCH CTL SIMPLY CONFUSED ACFT CALL SIGNS. FORTUNATELY OUR ACFT WAS TCAS EQUIPPED. WE ASKED CTLR ON FREQ 126.15 IF THERE WAS A PROBLEM. CTLR STATED, 'NO PROBLEM, NO FAULT'. WE ASCERTAIN FROM HIS STATEMENT THAT WE MADE NO ERROR.
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.