NYC08CA115

NTSB accident investigation · Boeing 737-700 · Valdosta, GA · February 23, 2008

Accident · Serious injuriesData collectionFinal report
Date
February 22, 2008, 20:00 local (Feb 23, 2008, 01:00 UTC)
Place
Valdosta, GA
Injuries
1 serious, 102 uninjured
Damage
No damage
Phase of flight
Approach
Aircraft
N551WNBoeing 737-700
Defining event
Approach: Turbulence encounter
Weather
Instrument (IMC) · Night
Status
Completed · report April 30, 2008
Report
Approved by Office Director
Parties
FAA Southwest CMO
FAA report
20080222839409I
Case key
67594

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

An unexpected encounter with turbulence, while on approach for landing.

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.

TurbulenceEnvironmental issues › Conditions/weather/phenomena · Not specifiedBoeing 737-76Q: 1 caseAll aircraft: 92 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.

Analysis

The Boeing 737-700 was at an altitude 30,0000 feet, and on the arrival approach for landing, when it encountered unexpected turbulence. The pilot flying stated that the turbulence was at least moderate in intensity and lasted for about 10 seconds. The autopilot remained engaged. The seat belt sign was illuminated and the flight attendants were securing the cabin for landing. One flight attendant was thrown against a wall and sustained a fractured ankle. The airplane subsequently landed without further incident.

Factual narrative

The Boeing 737-700 was at an altitude 30,0000 feet, and on the "PIGLT1" arrival to Orlando International Airport (MCO), Orlando, Florida, when it encountered unexpected turbulence. The pilot flying stated that the turbulence was at least moderate in intensity and lasted for about 10 seconds. The autopilot remained engaged. The seat belt sign was illuminated and the flight attendants were securing the cabin for landing. One flight attendant was thrown against a wall and sustained a fractured ankle. The airplane subsequently landed at MCO without further incident.

Aircraft

Registration
N551WN
Reported as
Boeing 737-700
Category
Airplane
Serial number
30280
Airframe hours
18,985
Engines
CFM International CFM56-7B22, 24,000 lbs thrust, turbo fanCFM International CFM56-7B22, 24,000 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Operator
Southwest Airlines Co., doing business as Southwest Airlines
Registered owner
Wells Fargo Bank NW NA Trustee
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · February 1, 2008
Departed
MCI · Kansas City, MO
Destination
MCO · Orlando, FL
Flight plan
IFR
Airport
MCO · Orlando International

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
39
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
June 1, 2007
Seat
Left
Flight hours
10,000 total · 5,500 in this make and model · 6,500 as pilot in command · 240 in the last 90 days · 80 in the last 30 days · 7 in the last 24 hours
Role
Co-pilot
Age
33
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine sea
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
July 1, 2007
Seat
Right
Flight hours
7,292 total · 1,092 in this make and model · 4,000 as pilot in command · 190 in the last 90 days · 49 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
2,800 ft overcast
Temperature
64 °F, dew point 63 °F
Altimeter
29.94 inHg
Observed at
VLD

FAA reports on this event · 1

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

Other investigations on N551WN · 1

Matched to the same aircraft by N-number and date.