NTSB Identification: CHI88FA048.
The docket is stored on NTSB microfiche number 37766.
Scheduled 14 CFR operation of AMERICAN AIRLINES
Accident occurred Tuesday, January 19, 1988 in CHICAGO, IL
Probable Cause Approval Date: 11/07/1989
Aircraft: BOEING 767-200, registration: N306AA
Injuries: 1 Serious,1 Minor,145 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

A FLIGHT ATTENDANT AND A PASSENGER RECEIVED SERIOUS AND MINOR INJURIES RESPECTIVELY DURING AN INFLIGHT ENCOUNTER WITH SEVERE TURBULENCE DURING AN ENROUTE DESCENT. GREATER THAN MODERATE TURBULENCE WAS FORECAST TO BE IN THE AREA AND SEVERE TURBULENCE HAD BEEN REPORTED BY A TRANSPORT (HEAVY) CATEGORY AIRCRAFT. THE SEAT BELT SIGN WAS ON AND PASSENGERS WERE SEATED & BELTED. THE FLT ATTENDANTS WERE STANDING AND MOVING ABOUT. THE INJURED ATTENDANT HAD A BROKEN LEG. THE PASS'G COMPLAINED OF A SORE NECK.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLIGHT INTO KNOWN ADVERSE WEATHER..PERFORMED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

SEAT BELT..NOT USED..FLIGHT ATTENDANT


Contributing Factors

WEATHER CONDITION..TURBULENCE

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