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Traffic information and altitude assignments were confused resulting in an air carrier climbing to an incorrect altitude.
| Attributes | |
| ACN | 978346 |
| Time | |
| Date | 201111 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute |
| Qualification | Air Traffic Control Developmental |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance |
Narrative:
Aircraft X was issued FL220 and read back FL220. Aircraft Y was at FL230. Traffic was called to aircraft X using the thousand above your assigned phraseology. Traffic was also called to aircraft Y using the climbing to a thousand below your assigned. Aircraft X continued to climb to FL230. Telling the aircraft X to maintain FL220 after the traffic call could have eliminated this problem. If you say the wrong altitude because your thinking aircraft at FL230 you are back in the same position.
Original NASA ASRS Text
Title: Traffic information and altitude assignments were confused resulting in an Air Carrier climbing to an incorrect altitude.
Narrative: Aircraft X was issued FL220 and read back FL220. Aircraft Y was at FL230. Traffic was called to Aircraft X using the thousand above your assigned phraseology. Traffic was also called to Aircraft Y using the climbing to a thousand below your assigned. Aircraft X continued to climb to FL230. Telling the Aircraft X to maintain FL220 after the traffic call could have eliminated this problem. If you say the wrong altitude because your thinking aircraft at FL230 you are back in the same position.
Data retrieved from NASA's ASRS site as of April 2012 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.