 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
C550 cruising at 16500 ft VFR encountered a 6000 FPM updraft and climbed to FL210, entering the positive control area a, before the crew regained control.
| Attributes | |
| ACN | 367592 |
| Time | |
| Date | 199704 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bih |
| State Reference | CA |
| Altitude | msl bound lower : 16500 msl bound upper : 21000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa |
| Operator | general aviation : personal |
| Make Model Name | Citation II S2/Bravo |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 110 flight time total : 4000 flight time type : 2500 |
| ASRS Report | 367592 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | other other : other pilot : cfi pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 120 flight time total : 2300 flight time type : 350 |
| ASRS Report | 367591 |
| Events | |
| Anomaly | inflight encounter other non adherence : far other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : exited penetrated airspace flight crew : regained aircraft control |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | Pilot Deviation |
Narrative:
This was the return trip. While en route from mmh to fat in VFR conditions at 16500 ft MSL, the plane encountered a huge updraft while crossing the mountains. The updraft was more than 6000 FPM and the airplane climbed no matter what we did short of a dive which would not have been a good idea considering the mountains. We attempted to stay below FL180 but could not until we turned around back towards bishop. Before succeeding a descent and turnaround, the plane reached approximately FL210. Once back down we requested and got an IFR clearance to fat and proceeded south before going west to avoid such turbulence and severe updrafts. Next time the winds are strong, a route around the mountains would be better!
Original NASA ASRS Text
Title: C550 CRUISING AT 16500 FT VFR ENCOUNTERED A 6000 FPM UPDRAFT AND CLBED TO FL210, ENTERING THE PCA A, BEFORE THE CREW REGAINED CTL.
Narrative: THIS WAS THE RETURN TRIP. WHILE ENRTE FROM MMH TO FAT IN VFR CONDITIONS AT 16500 FT MSL, THE PLANE ENCOUNTERED A HUGE UPDRAFT WHILE XING THE MOUNTAINS. THE UPDRAFT WAS MORE THAN 6000 FPM AND THE AIRPLANE CLBED NO MATTER WHAT WE DID SHORT OF A DIVE WHICH WOULD NOT HAVE BEEN A GOOD IDEA CONSIDERING THE MOUNTAINS. WE ATTEMPTED TO STAY BELOW FL180 BUT COULD NOT UNTIL WE TURNED AROUND BACK TOWARDS BISHOP. BEFORE SUCCEEDING A DSCNT AND TURNAROUND, THE PLANE REACHED APPROX FL210. ONCE BACK DOWN WE REQUESTED AND GOT AN IFR CLRNC TO FAT AND PROCEEDED S BEFORE GOING W TO AVOID SUCH TURB AND SEVERE UPDRAFTS. NEXT TIME THE WINDS ARE STRONG, A RTE AROUND THE MOUNTAINS WOULD BE BETTER!
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.