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A widebody transport air carrier first officer described a moderate turbulence encounter while climbing out of las, which caused the aircraft to overshoot the assigned altitude.
| Attributes | |
| ACN | 484660 |
| Time | |
| Date | 200009 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : bce.vortac |
| State Reference | UT |
| Altitude | agl bound lower : 26500 agl bound upper : 41 agl single value : 40 msl single value : 27700 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | Turbulence |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : instrument pilot : multi engine pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 5000 flight time type : 200 |
| ASRS Report | 484660 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot inflight encounter : turbulence non adherence : clearance other anomaly |
| Independent Detector | other flight crewa other flight crewb |
| Consequence | faa : reviewed incident with flight crew other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather |
| Primary Problem | Weather |
Narrative:
Climbing out of las, encountered moderate turbulence at 26500 ft (wind shift from 216 degrees/18 KTS to 260 degrees/30 KTS). Pitch increased to 13 degrees. Exceeded cleared altitude of 27000 ft. Leveloff at 27000 ft would have resulted in negative G's. Seat belt sign was off and flight attendants were up and about. Leveled at 27700 ft and notified ATC of deviation and turbulence. ATC cleared us to 29000 ft and we continued climb.
Original NASA ASRS Text
Title: A WDB ACR FO DESCRIBED A MODERATE TURB ENCOUNTER WHILE CLBING OUT OF LAS, WHICH CAUSED THE ACFT TO OVERSHOOT THE ASSIGNED ALT.
Narrative: CLBING OUT OF LAS, ENCOUNTERED MODERATE TURB AT 26500 FT (WIND SHIFT FROM 216 DEGS/18 KTS TO 260 DEGS/30 KTS). PITCH INCREASED TO 13 DEGS. EXCEEDED CLRED ALT OF 27000 FT. LEVELOFF AT 27000 FT WOULD HAVE RESULTED IN NEGATIVE G'S. SEAT BELT SIGN WAS OFF AND FLT ATTENDANTS WERE UP AND ABOUT. LEVELED AT 27700 FT AND NOTIFIED ATC OF DEV AND TURB. ATC CLRED US TO 29000 FT AND WE CONTINUED CLB.
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.