Air carrier widebody transport hit the edge of thunderstorm activity causing altitude deviation plus 1000 ft and minus 1000 ft and injury to both passenger and cabin attendants.

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Attributes
ACN	182512
Time
Date	199107
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : ewr
State Reference	NJ
Altitude	msl bound lower : 34000 msl bound upper : 36000
Environment
Flight Conditions	IMC
Light	Dusk
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 airway : a300 enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 13000 flight time type : 341
ASRS Report	182512
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 45 flight time total : 2659 flight time type : 45
ASRS Report	182513
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter : weather
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : exited adverse environment
Consequence	other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

We were flying northbound on amben 300 and were approximately 120 NM south of champ when we encountered severe turbulence while deviating around a thunderstorm. At the time we were at FL350, .78 mach, with seat belt/no smoking sign on, they had been on for 45 mins before the incident occurred, engine anti-ice and continuous ignition on. Autoplt was engaged in command I and altitude hold. The radar was on and on both the 30 and 60 mi scale no WX was observed to the right. We encountered turbulence which displaced us from our altitude approximately 1000 ft above and below our altitude. The event lasted approximately 30-40 seconds after which we returned to our assigned altitude of FL350. We sustained injuries to 4 flight attendants and 8 passenger. All injuries occurred in last 6 rows of coach and aft galley. Passenger injuries were possibly due to unfastened seat belts and 1 passenger was coming out of lavatory. Flight attendants were in aft galley with carts out of their storage bins.

Original NASA ASRS Text

Title: ACR WDB HIT THE EDGE OF TSTM ACTIVITY CAUSING ALT DEV PLUS 1000 FT AND MINUS 1000 FT AND INJURY TO BOTH PAX AND CABIN ATTENDANTS.

Narrative: WE WERE FLYING NBOUND ON AMBEN 300 AND WERE APPROX 120 NM S OF CHAMP WHEN WE ENCOUNTERED SEVERE TURB WHILE DEVIATING AROUND A TSTM. AT THE TIME WE WERE AT FL350, .78 MACH, WITH SEAT BELT/NO SMOKING SIGN ON, THEY HAD BEEN ON FOR 45 MINS BEFORE THE INCIDENT OCCURRED, ENG ANTI-ICE AND CONTINUOUS IGNITION ON. AUTOPLT WAS ENGAGED IN COMMAND I AND ALT HOLD. THE RADAR WAS ON AND ON BOTH THE 30 AND 60 MI SCALE NO WX WAS OBSERVED TO THE R. WE ENCOUNTERED TURB WHICH DISPLACED US FROM OUR ALT APPROX 1000 FT ABOVE AND BELOW OUR ALT. THE EVENT LASTED APPROX 30-40 SECONDS AFTER WHICH WE RETURNED TO OUR ASSIGNED ALT OF FL350. WE SUSTAINED INJURIES TO 4 FLT ATTENDANTS AND 8 PAX. ALL INJURIES OCCURRED IN LAST 6 ROWS OF COACH AND AFT GALLEY. PAX INJURIES WERE POSSIBLY DUE TO UNFASTENED SEAT BELTS AND 1 PAX WAS COMING OUT OF LAVATORY. FLT ATTENDANTS WERE IN AFT GALLEY WITH CARTS OUT OF THEIR STORAGE BINS.

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.