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Pc-12 pilot reported loss of altitude and airspeed control after encountering severe turbulence descending through 9;000 feet in the vicinity of cae.
| Attributes | |
| ACN | 1537877 |
| Time | |
| Date | 201804 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | CAE.Airport |
| State Reference | SC |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | PC-12 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | 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 descending through approximately 9;000 feet 25 NM northeast [of] cae encountered severe turbulence. Slowed from 200 KIAS to 160 KIAS. Unable to maintain altitude or pitch. Maintained wings level best we could. Autopilot disconnected as soon as we entered. Noticed vsi was going from +/-2000 FPM; red arc for stalling was exceeding 150 kts on the airspeed indicator. Left encounter around 6;000 feet after bouncing from 9;000-7;000 back to 9;000 down to 6;000 feet. Asked ATC for deviations because our radar and nexrad was showing nothing. ATC noted nothing was showing on their radar within our area either; was advised to do whatever was necessary and advise of any further help was needed. After exiting; plane seemed fine; continued and landed with no further incident.
Original NASA ASRS Text
Title: PC-12 pilot reported loss of altitude and airspeed control after encountering severe turbulence descending through 9;000 feet in the vicinity of CAE.
Narrative: While descending through approximately 9;000 feet 25 NM northeast [of] CAE encountered severe turbulence. Slowed from 200 KIAS to 160 KIAS. Unable to maintain altitude or pitch. Maintained wings level best we could. Autopilot disconnected as soon as we entered. Noticed VSI was going from +/-2000 FPM; red arc for stalling was exceeding 150 kts on the airspeed indicator. Left encounter around 6;000 feet after bouncing from 9;000-7;000 back to 9;000 down to 6;000 feet. Asked ATC for deviations because our radar and NEXRAD was showing nothing. ATC noted nothing was showing on their radar within our area either; was advised to do whatever was necessary and advise of any further help was needed. After exiting; plane seemed fine; continued and landed with no further incident.
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.