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A C210 turbo centurion private pilot loses control of his aircraft during an updraft at 17500 ft and enters the class a airspace of ZOA, ca.
| Attributes | |
| ACN | 469650 |
| Time | |
| Date | 200004 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | CA |
| Altitude | msl bound lower : 17500 msl bound upper : 19500 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Turbulence Windshear |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa.artcc tower : isp.tower |
| Operator | general aviation : personal |
| Make Model Name | Cessna 210 Centurion / Turbo Centurion 210C, 210D |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Route In Use | enroute : direct |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 15 flight time total : 1300 |
| ASRS Report | 469650 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | airspace violation : entry altitude deviation : excursion from assigned altitude inflight encounter : turbulence inflight encounter other non adherence : clearance other anomaly other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : exited penetrated airspace flight crew : regained aircraft control flight crew : returned to intended or assigned course none taken : insufficient time |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Aircraft Airspace Structure Flight Crew Human Performance |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Level at 17500 ft (VFR) strong downdraft after crossing sierra mountain range. Stabilized, climbed back to 17500 ft, followed by moderate turbulence, updraft which quickly pegged vsi at 2000 FPM. Slowly pulled power to almost idle, didn't want to push down too hard (airspeed in yellow arc/turbulence). Leveled at approximately FL195, then descended back 17500 ft. Almost started to hyperventilate. I increased oxygen flow to maximum.
Original NASA ASRS Text
Title: A C210 TURBO CENTURION PVT PLT LOSES CTL OF HIS ACFT DURING AN UPDRAFT AT 17500 FT AND ENTERS THE CLASS A AIRSPACE OF ZOA, CA.
Narrative: LEVEL AT 17500 FT (VFR) STRONG DOWNDRAFT AFTER XING SIERRA MOUNTAIN RANGE. STABILIZED, CLBED BACK TO 17500 FT, FOLLOWED BY MODERATE TURB, UPDRAFT WHICH QUICKLY PEGGED VSI AT 2000 FPM. SLOWLY PULLED PWR TO ALMOST IDLE, DIDN'T WANT TO PUSH DOWN TOO HARD (AIRSPD IN YELLOW ARC/TURB). LEVELED AT APPROX FL195, THEN DSNDED BACK 17500 FT. ALMOST STARTED TO HYPERVENTILATE. I INCREASED OXYGEN FLOW TO MAX.
Data retrieved from NASA's ASRS site as of July 2007 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.