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Similar call signs cause air carrier to descend on another air carrier's clearance until queried by ARTCC.
| Attributes | |
| ACN | 466020 |
| Time | |
| Date | 200003 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : hou.airport |
| State Reference | TX |
| Altitude | msl bound lower : 12000 msl bound upper : 14000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Thunderstorm Turbulence |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhu.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | ATR 72 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : enroute altitude change cruise : level |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 8500 flight time type : 4700 |
| ASRS Report | 466020 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : atp pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 250 flight time total : 5500 flight time type : 1600 |
| ASRS Report | 466011 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | other controllerb |
| Resolutory Action | controller : issued advisory 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:
I was distracted flying the aircraft deviating around thunderstorm cells. Heard a clearance by ATC. First officer read back an altitude change and we began descending. ATC queried us and we corrected for altitude. No further incident occurred. WX was a factor. It had been a long day. The first officer was low time. Both pilots were a little tired. Supplemental information from acn 466011: apparently it was for another carrier that had a similar sounding flight number.
Original NASA ASRS Text
Title: SIMILAR CALL SIGNS CAUSE ACR TO DSND ON ANOTHER ACR'S CLRNC UNTIL QUERIED BY ARTCC.
Narrative: I WAS DISTRACTED FLYING THE ACFT DEVIATING AROUND TSTM CELLS. HEARD A CLRNC BY ATC. FO READ BACK AN ALT CHANGE AND WE BEGAN DSNDING. ATC QUERIED US AND WE CORRECTED FOR ALT. NO FURTHER INCIDENT OCCURRED. WX WAS A FACTOR. IT HAD BEEN A LONG DAY. THE FO WAS LOW TIME. BOTH PLTS WERE A LITTLE TIRED. SUPPLEMENTAL INFO FROM ACN 466011: APPARENTLY IT WAS FOR ANOTHER CARRIER THAT HAD A SIMILAR SOUNDING FLT NUMBER.
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.