Aircraft Accident/Incident Report

Peotone, Illinois 60468
Wednesday, July 22, 1998 13:45 CST

NTSB Narrative Summary Released at Completion of Accident

Moderate turbulence was encountered as the airplane climbed through FL180 while in the clouds. There were no weather returns indicating turbulence nor were there any reports of turbulence from Air Traffic Control or other airplanes. One flight attendant who was in the aft galley received minor injuries. One passenger received a broken rib when the male portion of her seat belt disconnected from its attach point. The attach point and the latching mechanism were both intact. This passenger was thrown from her seat into the aisle.

NTSB Probable Cause Narrative

In-flight encounter with turbulence.

Event Information

Type of Event Accident
Event Date 7/22/1998
Event Day of the Week Wednesday
Time of Event 1345
Event Time Zone Central Standard Time
Event City PEOTONE
Event State ILLINOIS
Event Country --
Zipcode of the event site 60468
Event Date Year 1998
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Unknown
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1353 Central Daylight Time
Direction of event from weather observation facility (degrees) 5
Weather Observation Facility ID MDW
Elevation of weather observation facility 620
Distance of event from weather observation facility (units?) 36
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 9500
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 19
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 135
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 691
NTSB Notification Source --
NTSB Notification Date Jul 22 1998 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:36AM
User who most recently changed record dbo
Basic weather conditions Unknown
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N335AA
NTSB Number CHI98LA269
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Boeing
Aircraft Model 767-223
Aircraft Series Identifier 767-223
Aircraft Serial Number 22333
Certified Max Gross Weight 351000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 305
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WILMINGTON TRUST COMPANY
Aircraft Owner Street Address 1100 N. MARKET ST
Aircraft Owner City WILMINGTON
Aircraft Owner State DE
Aircraft Owner Country
Aircraft Owner Zipcode 19890
Operator is an individual? --
Operator Name AMERICAN AIRLINES, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 61616
Operator City DFW AIRPORT
Operator State TX
Operator Country
Operator Zip code 75261
Operator Code AALA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code ORD
Departure City CHICAGO
Departure State IL
Departure Country
Departure Time 1319
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code RDU
Destination City RALEIGH-DURHAM
Destination State NC
Destination Country
Specific Phase of Flight Climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --