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Emb-505 first officer reported an encounter with moderate to severe turbulence that resulted in an altitude deviation.
| Attributes | |
| ACN | 1740130 |
| Time | |
| Date | 202004 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZJX.ARTCC |
| State Reference | FL |
| Environment | |
| Flight Conditions | VMC |
| Light | Dawn |
| Aircraft 1 | |
| Make Model Name | EMB-505 / Phenom 300 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Private Flight Crew Instrument Flight Crew Commercial Flight Crew Multiengine |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Inflight Event / Encounter Weather / Turbulence Inflight Event / Encounter Loss Of Aircraft Control |
Narrative:
While on cruise at FL450; overhead the severe front that was crossing the southeast on [date]; passing in between two thunderstorms with tops at FL460; we briefly went through turbulences (moderate to borderline severe) which resulted in a climb to 45;150 ft.; immediately followed by a descent to about 44;550 ft.; at a rate of about 750 fpm. The captain who was the flying pilot immediately took corrective actions. With sky clearing below us as we were just passing the tops of that front; we immediately asked jax center for lower and were assigned FL400. During the communication jax center asked if we had experienced turbulences due to the proximity of the thunderstorm because they were showing an altitude variation on their radar. We confirmed that we had experienced turbulences and did a PIREP. Avoid getting close to a thunderstorm overhang especially at such an altitude but there was not much signs that we would be experiencing such turbulences because the 2 storms were further than 20 NM from our path.
Original NASA ASRS Text
Title: EMB-505 First Officer reported an encounter with moderate to severe turbulence that resulted in an altitude deviation.
Narrative: While on cruise at FL450; overhead the severe front that was crossing the Southeast on [date]; passing in between two thunderstorms with tops at FL460; we briefly went through turbulences (moderate to borderline severe) which resulted in a climb to 45;150 ft.; immediately followed by a descent to about 44;550 ft.; at a rate of about 750 fpm. The Captain who was the flying pilot immediately took corrective actions. With sky clearing below us as we were just passing the tops of that front; we immediately asked JAX Center for lower and were assigned FL400. during the communication JAX Center asked if we had experienced turbulences due to the proximity of the thunderstorm because they were showing an altitude variation on their radar. We confirmed that we had experienced turbulences and did a PIREP. Avoid getting close to a thunderstorm overhang especially at such an altitude but there was not much signs that we would be experiencing such turbulences because the 2 storms were further than 20 NM from our path.
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.