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Westwind crew with similar call sign to another aircraft takes descent clearance that was not theirs. ATC did not announce the similar call signs on frequency.
| Attributes | |
| ACN | 463410 |
| Time | |
| Date | 200002 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : mem.ils |
| State Reference | TN |
| Altitude | msl bound lower : 18600 msl bound upper : 19000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zme.artcc |
| Operator | general aviation : corporate |
| Make Model Name | IAI1123 Westwind |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 90 flight time total : 6500 flight time type : 2500 |
| ASRS Report | 463410 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 90 flight time total : 5600 flight time type : 45 |
| ASRS Report | 463407 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | other controllerb other flight crewa other flight crewb |
| Resolutory Action | controller : issued advisory controller : issued new clearance flight crew : returned to assigned altitude |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We checked in with ZME as aircraft xy at FL190. Memphis replied with aircraft yx at FL190. In about 10 mins memphis requested yx descend to 16000 ft. The captain replied aircraft xy descending to 16000 ft with no reply from ATC. At about 400 ft below FL190 ATC announced he had aircraft yx and aircraft xy on frequency and aircraft yx maintain FL190. The captain climbed back to FL190.
Original NASA ASRS Text
Title: WESTWIND CREW WITH SIMILAR CALL SIGN TO ANOTHER ACFT TAKES DSCNT CLRNC THAT WAS NOT THEIRS. ATC DID NOT ANNOUNCE THE SIMILAR CALL SIGNS ON FREQ.
Narrative: WE CHKED IN WITH ZME AS ACFT XY AT FL190. MEMPHIS REPLIED WITH ACFT YX AT FL190. IN ABOUT 10 MINS MEMPHIS REQUESTED YX DSND TO 16000 FT. THE CAPT REPLIED ACFT XY DSNDING TO 16000 FT WITH NO REPLY FROM ATC. AT ABOUT 400 FT BELOW FL190 ATC ANNOUNCED HE HAD ACFT YX AND ACFT XY ON FREQ AND ACFT YX MAINTAIN FL190. THE CAPT CLBED BACK TO FL190.
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.