# NTSB CHI88FA048: Boeing 767-200, N306AA, Chicago, IL, January 20, 1988

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: January 19, 1988, 18:12 local (Jan 20, 1988, 00:12 UTC)
- Place: Chicago, IL
- Location: 41.8500° N, 87.6501° W: Placed by OpenAirDocs: center of Chicago, IL, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8500&lon=-87.6501&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor, 145 uninjured
- Status: Completed, report November 7, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 13930
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI88FA048
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13930/pdf
- Page: https://openairdocs.org/ntsb/CHI88FA048

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Altitude deviation,uncontrolled, descent - normal
  - weather condition - turbulence (contributing factor)
  - flight into known adverse weather - performed, pilot in command (cause)
  - in-flight planning/decision - improper, pilot in command (cause)
  - seat belt sign - selected, pilot in command
  - seat belt - not used, flight attendant (cause)

## Analysis

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.

## Aircraft

- Registration: [N306AA](https://openairdocs.org/deregistered/N306AA-2017-07-03), registration cancelled 2017-07-03, S/N 22312, built 1983 (OpenAirDocs)
- Reported make and model: BOEING 767-200
- Registry model: [Boeing 767-223](https://openairdocs.org/model/boeing-767-223) (registry code 1385123) (OpenAirDocs)
- Registry engine: [GE CF6-80 series](https://openairdocs.org/engine/ge-cf6-80-series) (registry code 30025, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: 22312
- Engines: P&W JT9D-7 40550 lbs thrust turbo fan
- Damage: No damage
- Flight: Part 121
- Operator: American Airlines
- Registered owner: American Airlines
- Airworthiness certificate: Standard, Transport
- Departed: DFW, FORT WORTH, TX
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, unknown; seat: left; flight hours: 13,000 total, 326 in this make and model

## Weather

- Conditions: Dusk

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19880119071839A](https://openairdocs.org/incident/19880119071839A), Jan 19, 1988: Boeing 767223, Chicago, IL. Passenger and attendant injured in forecast cat. Seat belt sign on. Flight attendant broke leg. Passenger sore neck

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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