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Cessna 425 pilot reported he encountered severe clear air turbulence on descent to apa on the LARKS8 arrival.
| Attributes | |
| ACN | 1422575 |
| Time | |
| Date | 201702 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | APA.Airport |
| State Reference | CO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Cessna 425/441 Conquest I/Conquest II |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Descent |
| Route In Use | Vectors STAR LARKS8 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Single Pilot |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Private |
| Experience | Flight Crew Last 90 Days 30 Flight Crew Total 1576 Flight Crew Type 800 |
| Events | |
| Anomaly | Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter Weather / Turbulence |
Narrative:
Descending with vectors from the LARKS8 arrival on an IFR flight plan from ZZZ to apa. Encountered severe clear air turbulence at approximately 12;500 MSL in the descent over the front range of the rockies. Turbulence came on immediately with no prior turbulence. Could not maintain assigned altitude or heading. I reduced speed to maneuvering speed; deployed the gear and maintained wings level. I reported to denver approach that I was below assigned altitude and encountering severe turbulence. I was cleared to a lower altitude and turbulence abated at about 8;500 MSL. I made a pilot report to denver approach. Landing with gusts to 30 kts out of the west was uneventful on runway 28 at apa. This was the worst turbulence I have experience in the cessna 425 and I have several hundred hours of time in type and have flown the LARKS8 STAR often.
Original NASA ASRS Text
Title: Cessna 425 pilot reported he encountered severe clear air turbulence on descent to APA on the LARKS8 Arrival.
Narrative: Descending with vectors from the LARKS8 arrival on an IFR flight plan from ZZZ to APA. Encountered severe clear air turbulence at approximately 12;500 MSL in the descent over the front range of the Rockies. Turbulence came on immediately with no prior turbulence. Could not maintain assigned altitude or heading. I reduced speed to maneuvering speed; deployed the gear and maintained wings level. I reported to Denver Approach that I was below assigned altitude and encountering severe turbulence. I was cleared to a lower altitude and turbulence abated at about 8;500 MSL. I made a pilot report to Denver approach. Landing with gusts to 30 kts out of the west was uneventful on runway 28 at APA. This was the worst turbulence I have experience in the Cessna 425 and I have several hundred hours of time in type and have flown the LARKS8 STAR often.
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.