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Clear air turbulence. Air carrier aircraft encounters clear air turbulence at 37000 ft and recovers at 34600 ft. Only 11 injuries.
| Attributes | |
| ACN | 299280 |
| Time | |
| Date | 199503 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : dbn |
| State Reference | GA |
| Altitude | msl bound lower : 34600 msl bound upper : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 55 flight time total : 2000 flight time type : 55 |
| ASRS Report | 299280 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : flight engineer pilot : private pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 5000 flight time type : 2500 |
| ASRS Report | 299222 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude inflight encounter : weather non adherence : clearance other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : exited adverse environment flight crew : regained aircraft control |
| Consequence | other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | other |
Narrative:
At FL370 over southeast georgia, encountered severe clear air turbulence. A rapid and violent pitch down occurred to about 10 degrees nose low, followed almost immediately by a rapid roll to the right of approximately 50 degree bank. A subsequent and rapid roll to the left followed to approximately 60 degrees of bank. Supplemental information from acn 299222: aircraft returned to stabilized flight after 20-25 seconds at FL346. Supplemental information from acn 298941: 10 passenger and 1 crewmember were involved. ATC gave us priority handling and a visual approach to runway 9L at atlanta. Landing was routine and medical personnel met the aircraft.
Original NASA ASRS Text
Title: CLR AIR TURB. ACR ACFT ENCOUNTERS CLR AIR TURB AT 37000 FT AND RECOVERS AT 34600 FT. ONLY 11 INJURIES.
Narrative: AT FL370 OVER SE GEORGIA, ENCOUNTERED SEVERE CLR AIR TURB. A RAPID AND VIOLENT PITCH DOWN OCCURRED TO ABOUT 10 DEGS NOSE LOW, FOLLOWED ALMOST IMMEDIATELY BY A RAPID ROLL TO THE R OF APPROX 50 DEG BANK. A SUBSEQUENT AND RAPID ROLL TO THE L FOLLOWED TO APPROX 60 DEGS OF BANK. SUPPLEMENTAL INFO FROM ACN 299222: ACFT RETURNED TO STABILIZED FLT AFTER 20-25 SECONDS AT FL346. SUPPLEMENTAL INFO FROM ACN 298941: 10 PAX AND 1 CREWMEMBER WERE INVOLVED. ATC GAVE US PRIORITY HANDLING AND A VISUAL APCH TO RWY 9L AT ATLANTA. LNDG WAS ROUTINE AND MEDICAL PERSONNEL MET THE ACFT.
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.