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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Air carrier flight crew, in response to clearance given to another aircraft, leaves assigned altitude. Mistake caught by crew after 500 ft excursion.
| Attributes | |
| ACN | 437610 |
| Time | |
| Date | 199905 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dtw.airport |
| State Reference | MI |
| Altitude | msl bound lower : 10000 msl bound upper : 10500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d21.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : multi engine pilot : cfi |
| Experience | flight time last 90 days : 180 flight time total : 9500 flight time type : 600 |
| ASRS Report | 437610 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to original clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Similar aircraft call signs, and controller workload was the cause of this event. We were level at 10000 ft, controller told another aircraft with similar call sign to climb to 13000 ft. We started to climb out of 10000 ft and captain noticed another aircraft with a similar call sign. We doublechked with ATC, and were told to maintain 10000 ft. We had climbed to 10500 ft and returned to 10000 ft.
Original NASA ASRS Text
Title: ACR FLC, IN RESPONSE TO CLRNC GIVEN TO ANOTHER ACFT, LEAVES ASSIGNED ALT. MISTAKE CAUGHT BY CREW AFTER 500 FT EXCURSION.
Narrative: SIMILAR ACFT CALL SIGNS, AND CTLR WORKLOAD WAS THE CAUSE OF THIS EVENT. WE WERE LEVEL AT 10000 FT, CTLR TOLD ANOTHER ACFT WITH SIMILAR CALL SIGN TO CLB TO 13000 FT. WE STARTED TO CLB OUT OF 10000 FT AND CAPT NOTICED ANOTHER ACFT WITH A SIMILAR CALL SIGN. WE DOUBLECHKED WITH ATC, AND WERE TOLD TO MAINTAIN 10000 FT. WE HAD CLBED TO 10500 FT AND RETURNED TO 10000 FT.
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.