CEN09LA106

NTSB accident investigation · Embraer ERJ 170-10 · Kansas City, MO · December 27, 2008

Accident · Serious injuriesLimited investigationFinal report
Date
December 26, 2008, 23:40 local (Dec 27, 2008, 05:40 UTC)
Place
Kansas City, MO
Injuries
1 serious, 76 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N871RWEmbraer ERJ 170-10
Defining event
Enroute-descent: Turbulence encounter
Weather
Visual (VMC) · Not reported
Status
Completed · report February 25, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA FSDO
FAA report
20081226857259A
Case key
73148

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

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Probable cause

An in-flight encounter with turbulence, which resulted in a serious injury to a flight attendant.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Turbulence: convective turbulenceEnvironmental issues › Conditions/weather/phenomena · Effect on personnelAll aircraft: 145 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Turbulence encounterEnroute-descentAll aircraft: 423 casesDefining event

Analysis

While descending into the destination airfield, the crew deviated course to avoid thunderstorms as turbulence was expected. The flight crew warned the flight attendants and passengers of anticipated turbulence. The captain reported that the airplane then experienced "light chop with areas of moderate to sever[e] turbulence." During the encounter, a flight attendant who was in the aft galley securing a beverage cart fell on her left side and fractured her ankle.

Factual narrative

On December 26, 2008 at approximately 2340 central standard time, an Embraer 170-10 encountered severe turbulence while en route to Kansas City International Airport (MCI), Kansas City, Missouri. 1 flight attendant sustained a serious injury. The 2 pilots, 1 additional flight attendant, and 73 passengers were not injured. The airplane was owned and operated by Republic Airlines. Visual meteorological conditions prevailed and an instrument flight plan was filed for the 14 Code of Federal Regulations Part 121 flight. According to a statement provided by the captain, while performing the en route descent into MCI, the crew was warned by Air Traffic Control of convective activity near the landing airport. The pilots were given permission to deviate as necessary to avoid the weather. The captain stated that after utilizing the airplane's weather radar, a course was selected which would avoid the thunderstorms, but the captain anticipated turbulence. The first officer communicated the warning to the flight attendants as well as the passengers. While avoiding the thunderstorms, the captain reported that the flight encountered "light chop with areas of moderate to sever[e] turbulence." In a statement provided by the injured flight attendant, after receiving the warning from the first officer, the flight attendant transported the beverage cart to the aft galley. The flight attendant reported that while securing the beverage cart in the aft galley, the airplane encountered a "violent surge of turbulence" which resulted in the flight attendant being thrown upwards and landed on the left side of her body, fracturing her ankle. A medical examination later determined that she had fractured her ankle. At 2353, an automated weather reporting facility at MCI reported winds from 190 degrees at 15 knots, visibility 9 statute miles, scattered clouds at 3,000 feet, temperature 63 degrees Fahrenheit, dew point 59 degrees Fahrenheit, and a barometric pressure of 29.62 inches of Mercury. In addition, there were remarks that thunderstorm conditions ended at 2348, and occasional lightning was present in-cloud and cloud to cloud south-west of the station. Thunderstorms were present to the southwest of the station and were moving northeast.

Aircraft

Registration
N871RW
Reported as
Embraer ERJ 170-10
Category
Airplane
Serial number
17000140
Engines
GE CF34-8E5, 14,510 horsepower, turbo fanGeneral Electrics CF34-8E5, 14,510 horsepower, turbo fan
Damage
No damage
Flight
Part 121
Operator
Republic Airline Inc, doing business as Republic Airlines
Registered owner
Republic Airline Inc
Airworthiness certificate
Standard, Normal
Departed
LGA · New York, NY
Destination
MCI · Kansas City, MO
Flight plan
IFR
Airport
KMCI · Kansas City International

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
26
Injuries
None
Certificates
Commercial, Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
February 25, 2008
Seat
Left
Flight hours
3,749 total · 101 in this make and model · 2,049 as pilot in command · 230 in the last 90 days · 99 in the last 30 days · 6 in the last 24 hours
Role
Co-pilot
Age
27
Injuries
None
Certificates
Flight instructor, Commercial, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
November 22, 2008
Seat
Right
Flight hours
2,700 total · 101 in this make and model · 507 as pilot in command · 101 in the last 30 days

Weather

Conditions
Visual (VMC) · Not reported
Wind
190° at 15 knots
Visibility
9 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 59 °F
Altimeter
29.62 inHg
Observed at
MCI

FAA reports on this event · 1

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