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A CRJ900 flight crew reported an altitude deviation when the autopilot failed to capture the assigned altitude following a wake vortex encounter.
| Attributes | |
| ACN | 964021 |
| Time | |
| Date | 201108 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | N90.TRACON |
| State Reference | NY |
| Aircraft 1 | |
| Make Model Name | Regional Jet 900 (CRJ900) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Aircraft 2 | |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 3 Flight Crew Total 4000 Flight Crew Type 1500 |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 34 Flight Crew Total 9000 Flight Crew Type 620 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Altitude Overshoot Deviation - Procedural Clearance Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
Climbing out of jfk we were cleared to 11;000 ft. The autopilot was engaged and the proper altitude was selected. The autopilot captured the altitude but the aircraft climbed through our assigned altitude. I turned the autopilot off and manually returned to 11;000 ft. We went through by about 500 ft at the peak. While I was trying to correct for the autopilot ATC cleared us to climb to 17;000. We were following a 777 and we did hit a little wake from it. Nothing too severe but enough to bounce the aircraft while climbing. That took place at about 10;000 ft.
Original NASA ASRS Text
Title: A CRJ900 flight crew reported an altitude deviation when the autopilot failed to capture the assigned altitude following a wake vortex encounter.
Narrative: Climbing out of JFK we were cleared to 11;000 FT. The autopilot was engaged and the proper altitude was selected. The autopilot captured the altitude but the aircraft climbed through our assigned altitude. I turned the autopilot off and manually returned to 11;000 FT. We went through by about 500 FT at the peak. While I was trying to correct for the autopilot ATC cleared us to climb to 17;000. We were following a 777 and we did hit a little wake from it. Nothing too severe but enough to bounce the aircraft while climbing. That took place at about 10;000 FT.
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.