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A CL65 flight crew determined it was necessary to exceed recommended maximum bank angle to avoid a thunderstorm in their path. Doing so triggered a bank angle warning.
| Attributes | |
| ACN | 950906 |
| Time | |
| Date | 201105 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZID.ARTCC |
| State Reference | IN |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet CL65 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Weather Radar |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Commercial |
| Experience | Flight Crew Last 90 Days 150 Flight Crew Total 2850 Flight Crew Type 960 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence |
Narrative:
The flight was going in and out of broken and overcast cloud layers. After the flight cleared one of the layers during climb we encountered a large cumulonimbus cloud within 10 miles. It had not been detected by our weather radar. I turned the heading bug to the right to avoid the build-up; but that was not enough. The captain disconnected the autopilot and made a steeper bank angle which triggered a 'bank angle' aural message.
Original NASA ASRS Text
Title: A CL65 flight crew determined it was necessary to exceed recommended maximum bank angle to avoid a thunderstorm in their path. Doing so triggered a BANK ANGLE warning.
Narrative: The flight was going in and out of broken and overcast cloud layers. After the flight cleared one of the layers during climb we encountered a large cumulonimbus cloud within 10 miles. It had not been detected by our weather radar. I turned the heading bug to the right to avoid the build-up; but that was not enough. The Captain disconnected the autopilot and made a steeper bank angle which triggered a 'BANK ANGLE' aural message.
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.