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Global express flight crew reported encountering severe mountain wave in the vicinity of the front range of the rockies.
| Attributes | |
| ACN | 1523398 |
| Time | |
| Date | 201803 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZDV.ARTCC |
| State Reference | CO |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Make Model Name | Global Express (BD700) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Deviation - Speed All Types Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Weather / Turbulence |
Narrative:
While in cruise at FL470; in clear calm conditions with the autopilot on; near the front range we encountered moderate turbulence caused by a severe mountain wave with [our aircraft] climbing instantly 300 ft. We disconnected the autopilot and corrected our altitude; maintaining level flight. We also called ATC and asked for FL430. As soon as clearance was given we started our descent. Stay alert.
Original NASA ASRS Text
Title: Global Express flight crew reported encountering severe mountain wave in the vicinity of the Front Range of the Rockies.
Narrative: While in cruise at FL470; in clear calm conditions with the autopilot on; near the Front Range we encountered moderate turbulence caused by a severe mountain wave with [our aircraft] climbing instantly 300 ft. We disconnected the autopilot and corrected our altitude; maintaining level flight. We also called ATC and asked for FL430. As soon as clearance was given we started our descent. Stay alert.
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.