CHI02LA043

NTSB accident investigation · McDonnell Douglas DC-9-82 · Romulus, MI · November 30, 2001

Accident · Serious injuriesLimited investigationFinal report
Date
November 30, 2001, 12:25 local (17:25 UTC)
Place
Romulus, MI
Injuries
1 serious, 89 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N488AAMcDonnell Douglas DC-9-82
Weather
Visual (VMC) · Day
Status
Completed · report December 6, 2002
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20011130036979A
Case key
53865

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The turbulence encountered in-flight and the passenger not complying with the flight and cabin crew’s warning of the turbulance.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight encounter with weatherCruise
Unsafe/hazardous condition warning - not complied withPassengerCause
Weather condition - turbulenceCause

Analysis

A passenger sustained a serious in-flight injury when the flight encountered turbulence. The passenger stated, "When I got up to go to bathroom there was no warning of any turbulence, there was no seat belt sign. Outside weather, lighting conditions I recall as normal. ... I do not recall any voice announcement of turbulence while I was in the toilet. ... As I was coming out, may be two feet from the entrance of the toilet I was thrown up-down a number of times. I tried to sit or catch the seats in vain. I saw two flight attendants seated and every attempt I made to catch something was failed. It was extremely severe turbulence. ... I fell on the ground. I saw my rt ankle is completely dislocated." The Captain stated, "Seatbelt sign was on from beginning of flight due to light chop. Ride began to deteriorate at [Flight Level] FL280 so we descended to FL240. Ride was still light chop until a point past [London VOR] YXU30 on [Jet airway] J36. We encountered a pocket of severe turb[ulence]. Immediately requested descent to FL200. After receiving clearance to descend ride smoothed out passing FK200. Flight attendants called up on the interphone and reported a man who was exiting aft lav as we hit the turb had injured his foot. Flight attendants reported to captain that foot was possibly broken. Crew notified [Air Traffic Control] ATC of medical emergency and requested landing at DTW and for medical assistance to meet aircraft. ... Uneventful landing was made. Paramedics came up aft airstair at the gate and assisted injured passenger." A flight attendant stated, "Then [the], (passenger) got up and came to the back. I told him that 'the seat belt sign was on and that he should be in his seat with his seat belt on.' He continues to the RH bathroom. [The #4 flight attendant] got up and a PA from the aft PA. She told the passengers that, 'the seat belt sign was on and they should remain in their seat with their seat belts on.' She then returned to row 30 seat F. About 1-2 minutes after her PA the passenger ... came out of the lav. It was bumpier then so I told him to take a seat. Right now in row 30-seat D. As he started in for row 30 we hit severe turbulence."

Factual narrative

On November 30, 2001, about 1225 eastern standard time, a McDonnell Douglas DC-9-82, N488AA, operated as American Airlines flight 321 from New York to Chicago, piloted by an airline transport rated captain and copilot, sustained a serious in-flight injury to one passenger when the flight encountered turbulence near London, Ontario, Canada. The flight diverted to Detroit Metropolitan Wayne County Airport (DTW), near Romulus, Michigan. The 14 CFR Part 121 scheduled domestic passenger flight was operating on an IFR flight plan. Visual meteorological conditions prevailed at the time of the accident. The 2 flight crewmembers, 3 cabin crewmembers, and remaining 84 passengers were uninjured. The flight originated from La Guardia Airport, near New York, New York, at 1102, and was enroute to Chicago O'Hare International Airport (ORD), Chicago, Illinois at the time of the accident. The flight landed at DTW at 1247.

The passenger stated:

When I got up to go to bathroom there was no warning of any turbulence, there

was no seat belt sign. Outside weather, lighting conditions I recall as normal. I

saw one person waiting for front end bathroom. As such I went to back of the

plane. As I was going I passed 1 flight attendent collecting cups and another

sitting near the entrance of toilet. She mentioned to me some one is in the toilet.

As she said that the person in came out of the toilet. I do not recall any voice

announcement of turbulence while I was in the toilet. I went to wash my hands and

it took less than a minute total in the toilet.

As I was coming out, may be two feet from the entrance of the toilet I was thrown

up-down a number of times. I tried to sit or catch the seats in vain. I saw two

flight attendants seated and every attempt I made to catch something was failed.

It was extremely severe turbulence. ...

I fell on the ground. I saw my rt ankle is completely dislocated. Once the

turbulance was over two flight attendants helped me to be on the seats.

The captain stated:

... Seatbelt sign was on from beginning of flight due to light chop. Ride began to

deteriorate at [flight level] FL280 so we descended to FL240. Ride was still

light chop until a point past [London VOR] YXU30 on [Jet airway] J36. We

encountered a pocket of severe turb[ulence]. Immediately requested descent to

FL200. After receiving clearance to descend ride smoothed out passing FL200.

Flight attendants called up on the interphone and reported a man who was

exiting aft lav as we hit the turb had injured his foot. Flight attendants reported to

captain that foot was possibly broken. Crew notified [Air Traffic Control] ATC of

medical emergency and requested landing at DTW and for medical assistance

to meet aircraft. First officer flew aircraft and coordinated with ATC while

captain called dispatch and coordinated with flight attendants. Uneventful

landing was made. Paramedics came up aft airstair at the gate and assisted

injured passenger.

A flight attendant stated:

... I told each person who got up to use the rest room that, the seat belt sign was

on and, that they should be in their seats with their seat belts on and, that, they

should not be up. During the whole flight it was choppy. The Captain made a PA

after take off around 15-20 minutes into the flight that he was going to leave the

seat belt sign on because it was choppy and we had just come in from ORD and

that flight was bumpy. 'So for their safety' he said, 'he was going to leave the

sign on until he felt it was safe enough to turn it off.' 'So he said, please stay in

your seat with your seat belts on.' After I cleaned up the galley I went out to pick

up. [The flight attendant] (#4) was up front. I came to the back and decided to take

a seat in row 31D. It was still bumpy. [The #4 flight attendant] was then on her way

back and she sat down in row 30-Seat F. The cabin was clear of passengers and

so was the bathrooms. Then [the], (passenger) got up and came to the back. I told

him that 'the seat belt sign was on and that he should be in his seat with his seat belt

on.' He continues to the RH bathroom. [The #4 flight attendant] got up and a PA

from the aft PA. She told the passengers that, 'the seat belt sign was on and they

should remain in their seat with their seat belts on.' She then returned to row 30

seat F. About 1-2 minutes after her PA the passenger ... came out of the lav. It

was bumpier then so I told him to take a seat. Right now in row 30-seat D. As he

started in for row 30 we hit severe turbulence. Both myself and F/A (#4) tried to

grab him. He flew up and down in the air about 4 to 5 times until the turbulence

stopped.

Aircraft

Registration
N488AA
Reported as
McDonnell Douglas DC-9-82
Category
Airplane
Serial number
49681
Airframe hours
38,867
Engines
Pratt & Whitney JT8D-200, 20,000 lbs thrust, turbo fanPratt & Whitney JT8D-200, 20,000 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Registered owner
American Airlines Inc
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · May 29, 2001 · 4,325 hours before
Departed
LGA · New York, NY
Destination
ORD · Chicago, IL
Flight plan
IFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
45
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
May 5, 2001
Seat
Center
Flight hours
10,000 total · 4,000 as pilot in command
Role
Co-pilot
Age
31
Injuries
None
Certificates
Airline transport, Flight instructor
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Last flight review
October 27, 2001
Seat
Right
Flight hours
7,000 total · 680 in this make and model · 2,700 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 22 knots, gusting 28
Visibility
10 statute miles
Lowest ceiling
1,700 ft broken
Temperature
48 °F, dew point 45 °F
Altimeter
29.73 inHg
Observed at
DTW, 100 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.