Air carrier B727 flight crew encountered severe turbulence overflying first officer airspace. Altitude deviation of 200 ft with 30 degree bank experienced. Aircraft returned to assigned flight course.

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Attributes
ACN	405850
Time
Date	199806
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : upa
State Reference	FO
Altitude	msl bound lower : 31000 msl bound upper : 31200
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : muha
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute : other oceanic
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	405850
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude inflight encounter other
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

ATC facility: havana center. Location: north 22.25 west 81.15. Severe turbulence encountered. Conditions: FL310, .78-.8 mach, IMC. Location: north 22.25 west 081.15. Time: XX45 UTC. Duration: 30-60 seconds. Altitude deviation, approximately 200 ft. Bank deviation: approximately 30 degrees. Flight attendants: seated several mins in advance. Cabin: no reported injuries to flight attendants or passenger. 1 passenger reported out of seat, in lavatory. Dispatch notified by radio. Entry made and maintenance personnel briefed. Chief pilot notified, was very glad all flight attendants were seated.

Original NASA ASRS Text

Title: ACR B727 FLC ENCOUNTERED SEVERE TURB OVERFLYING FO AIRSPACE. ALTDEV OF 200 FT WITH 30 DEG BANK EXPERIENCED. ACFT RETURNED TO ASSIGNED FLT COURSE.

Narrative: ATC FACILITY: HAVANA CTR. LOCATION: N 22.25 W 81.15. SEVERE TURB ENCOUNTERED. CONDITIONS: FL310, .78-.8 MACH, IMC. LOCATION: N 22.25 W 081.15. TIME: XX45 UTC. DURATION: 30-60 SECONDS. ALTDEV, APPROX 200 FT. BANK DEV: APPROX 30 DEGS. FLT ATTENDANTS: SEATED SEVERAL MINS IN ADVANCE. CABIN: NO RPTED INJURIES TO FLT ATTENDANTS OR PAX. 1 PAX RPTED OUT OF SEAT, IN LAVATORY. DISPATCH NOTIFIED BY RADIO. ENTRY MADE AND MAINT PERSONNEL BRIEFED. CHIEF PLT NOTIFIED, WAS VERY GLAD ALL FLT ATTENDANTS WERE SEATED.

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.