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Widebody transport air carrier encounters severe turbulence during flight on atlantic oceanic route causing injury to flight attendant.
| Attributes | |
| ACN | 154309 |
| Time | |
| Date | 199008 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : jfk |
| State Reference | NY |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : atlantic enroute : other oceanic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 7100 flight time type : 900 |
| ASRS Report | 154309 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 15100 flight time type : 1500 |
| ASRS Report | 154629 |
| Events | |
| Anomaly | aircraft equipment problem : less severe inflight encounter : weather other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : regained aircraft control flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Primary Problem | Weather |
| Air Traffic Incident | other |
Narrative:
While cruising in a cloud layer we suddenly experienced a brief period of moderate turbulence. The aircraft pitched and yawed and climbed several hundred ft during the encounter. One of the F/a's informed us of possible serious injuries in the cabin and the captain requested priority handling. Our color radar was set at the greatest range scale and showed a small area of activity approximately 20 NM to the east of course. If the radar had been set at a smaller range perhaps we would have seen some activity on our course and avoided the turbulence. The injuries in the cabin were confirmed as minor and priority handling was discontinued. Supplemental information from acn 154629: radar was selected in 240 mi range not showing any WX on radar. Suspect rapidly building circuit breaker that would have been detected on 60 mi range. Radar set at 2 1/2 degrees down, 3 clicks down from fixed gain. Landed phl as scheduled. One F/a cracked bone right foot.
Original NASA ASRS Text
Title: WDB ACR ENCOUNTERS SEVERE TURBULENCE DURING FLT ON ATLANTIC OCEANIC ROUTE CAUSING INJURY TO FA.
Narrative: WHILE CRUISING IN A CLOUD LAYER WE SUDDENLY EXPERIENCED A BRIEF PERIOD OF MODERATE TURB. THE ACFT PITCHED AND YAWED AND CLBED SEVERAL HUNDRED FT DURING THE ENCOUNTER. ONE OF THE F/A'S INFORMED US OF POSSIBLE SERIOUS INJURIES IN THE CABIN AND THE CAPT REQUESTED PRIORITY HANDLING. OUR COLOR RADAR WAS SET AT THE GREATEST RANGE SCALE AND SHOWED A SMALL AREA OF ACTIVITY APPROX 20 NM TO THE E OF COURSE. IF THE RADAR HAD BEEN SET AT A SMALLER RANGE PERHAPS WE WOULD HAVE SEEN SOME ACTIVITY ON OUR COURSE AND AVOIDED THE TURB. THE INJURIES IN THE CABIN WERE CONFIRMED AS MINOR AND PRIORITY HANDLING WAS DISCONTINUED. SUPPLEMENTAL INFO FROM ACN 154629: RADAR WAS SELECTED IN 240 MI RANGE NOT SHOWING ANY WX ON RADAR. SUSPECT RAPIDLY BUILDING CB THAT WOULD HAVE BEEN DETECTED ON 60 MI RANGE. RADAR SET AT 2 1/2 DEGS DOWN, 3 CLICKS DOWN FROM FIXED GAIN. LANDED PHL AS SCHEDULED. ONE F/A CRACKED BONE RIGHT FOOT.
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.