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Hawker 800 flight crew experienced an FMS failure as the aircraft was approaching the assigned altitude of 6000 feet with the first officer flying. The autopilot disengaged and the aircraft pitched up exceeding 7000 feet before the captain could take control. The first officer reported having no previous experience in the hawker 800.
| Attributes | |
| ACN | 1410580 |
| Time | |
| Date | 201612 |
| 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 | BAe 125 Series 800 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Autopilot |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 80 Flight Crew Total 4500 Flight Crew Type 1 |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 180 Flight Crew Total 13000 Flight Crew Type 2800 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Altitude Overshoot Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter Loss Of Aircraft Control |
Narrative:
Copilot was flying pilot with autopilot engaged using the FMS; 6000 feet was set in the altitude set window; navigation was using FMS#2; flying the SID; the autopilot was engaged flying off of the #2 FMS and #2 HSI.as soon as the aircraft passed 5900 feet instead of leveling off as programmed in the FMS and altitude alerter window (6000 feet) the #2 FMS went dead; and the autopilot disengaged and the trim was in the full up position.the aircraft rapidly climbed past 6000 feet while the captain grabbed the controls of the aircraft and got the aircraft back down to 6000 feet and on heading; the captain immediately called ATC for assistance; the captain took command of the controls and switched the autopilot over to FMS #1 and continued to fly the aircraft and was speaking to ATC.
Original NASA ASRS Text
Title: Hawker 800 flight crew experienced an FMS failure as the aircraft was approaching the assigned altitude of 6000 feet with the First Officer flying. The autopilot disengaged and the aircraft pitched up exceeding 7000 feet before the Captain could take control. The First Officer reported having no previous experience in the Hawker 800.
Narrative: Copilot was flying pilot with autopilot engaged using the FMS; 6000 feet was set in the altitude set window; navigation was using FMS#2; flying the SID; the autopilot was engaged flying off of the #2 FMS and #2 HSI.As soon as the aircraft passed 5900 feet instead of leveling off as programmed in the FMS and altitude alerter window (6000 feet) the #2 FMS went dead; and the autopilot disengaged and the trim was in the full up position.The aircraft rapidly climbed past 6000 feet while the captain grabbed the controls of the aircraft and got the aircraft back down to 6000 feet and on heading; the captain immediately called ATC for assistance; the captain took command of the controls and switched the autopilot over to FMS #1 and continued to fly the aircraft and was speaking to ATC.
Data retrieved from NASA's ASRS site 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.