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CL600 flight crew suffered the loss of EFIS generated heading information shortly after takeoff. Ultimately returned to the departure airport.
| Attributes | |
| ACN | 844978 |
| Time | |
| Date | 200907 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Challenger CL600 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Positional / Directional Sensing |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 210 Flight Crew Total 3500 Flight Crew Type 3100 |
| Person 2 | |
| Function | First Officer |
| Qualification | Flight Crew Commercial |
| Experience | Flight Crew Last 90 Days 200 Flight Crew Total 2300 Flight Crew Type 1300 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
We took off and were told to fly a heading. On takeoff we flew the assigned heading from ATC. Upon reaching that heading; departure told us to fly direct to a fix on the ZZZ 3 departure. As we started turning direct to the fix; the airplane signaled an EFIS comp mon caution message indicating the heading indications between captain and first officer indicators were not indicating the same heading. The headings differed by almost 90 degrees. We referenced the standby compass and it was stuck on a 090 degree heading (not an accurate heading). We were able to troubleshoot our heading issue within several seconds and got back on track direct as assigned by ATC. In the meantime ATC did query our heading. We alerted the controller to our situation and proceeded direct on course. After troubleshooting our problem further we returned to ZZZ.
Original NASA ASRS Text
Title: CL600 Flight Crew suffered the loss of EFIS generated heading information shortly after takeoff. Ultimately returned to the departure airport.
Narrative: We took off and were told to fly a heading. On takeoff we flew the assigned heading from ATC. Upon reaching that heading; Departure told us to fly direct to a fix on the ZZZ 3 departure. As we started turning direct to the fix; the airplane signaled an EFIS COMP MON caution message indicating the heading indications between Captain and First Officer indicators were not indicating the same heading. The headings differed by almost 90 degrees. We referenced the standby compass and it was stuck on a 090 degree heading (not an accurate heading). We were able to troubleshoot our heading issue within several seconds and got back on track direct as assigned by ATC. In the meantime ATC did query our heading. We alerted the controller to our situation and proceeded direct on course. After troubleshooting our problem further we returned to ZZZ.
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.