DCA17CA072

NTSB accident investigation · Boeing 737 76N · Phoenix, AZ · February 12, 2017

Accident · Serious injuriesData collectionFinal report
Date
February 11, 2017, 19:50 local (Feb 12, 2017, 02:50 UTC)
Place
Phoenix, AZ
Injuries
1 serious, 143 uninjured; on the ground: 1 serious
Damage
No damage
Phase of flight
Prior to flight
Aircraft
N7822ABoeing 737 76N
Defining event
Prior to flight: Ground handling event
Weather
Visual (VMC) · Night
Status
Completed · report May 26, 2017
Report
Approved by Office Director
NTSB office
Major Investigations Division
Case key
94770

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 catering agent's lack of situational awareness when exiting the airplane that resulted in a serious injury.

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.

Planning/preparationPersonnel issues › Task performance · Ground crewBoeing 737-76N: 1 caseAll aircraft: 113 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

On February 11, 2017, about 1950 mountain standard time, Southwest Airlines flight 4152, a Boeing 737-700, N7822A, had a catering agent fall from the airplane while alongside provisioning the airplane. On board were the captain, first officer, three flight attendants and several passengers. The regularly scheduled passenger flight was operating under the provisions of 14 Code of Federal Regulations Part 121 from Phoenix Sky Harbor International Airport (PHX), Phoenix, Arizona, to Sacramento International Airport (SMF), Sacramento, California. According to Southwest Airlines, while passengers were boarding the airplane at the gate, a catering agent returned to the airplane to provide a box of peanuts. The agent stopped the provisioning truck short of the airplane creating a gap between the truck and the airplane. After entering the airplane to deliver the peanuts, the agent lost situational awareness and stepped backwards, falling through the gap, and suffered a fractured rib.

Factual narrative

On February 11, 2017, about 1950 mountain standard time, Southwest Airlines flight 4152, a Boeing 737-700, N7822A, had a catering agent fall from the airplane while alongside provisioning the airplane. On board were the captain, first officer, three flight attendants and several passengers. The regularly scheduled passenger flight was operating under the provisions of 14 Code of Federal Regulations Part 121 from Phoenix Sky Harbor International Airport (PHX), Phoenix, Arizona, to Sacramento International Airport (SMF), Sacramento, California. According to Southwest Airlines, while passengers were boarding the airplane at the gate, a catering agent returned to the airplane to provide a box of peanuts. The agent stopped the provisioning truck short of the airplane creating a gap between the truck and the airplane. After entering the airplane to deliver the peanuts, the agent lost situational awareness and stepped backwards, falling through the gap, and suffered a fractured rib.

Aircraft

Registration
N7822A
Reported as
Boeing 737 76N (76N)
Category
Airplane
Serial number
32596
Built
2001
Airframe hours
47,885
Engines
CFM Intl CFM56-7B22, 24,000 lbs thrust, turbo fanCFM Intl CFM56-7B22, 24,000 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Operator
Southwest Airlines Co
Registered owner
Southwest Airlines Co
Airworthiness certificate
Standard, Transport
Last inspection
Continuous airworthiness · February 26, 2017
Departed
PHX · Phoenix, AZ
Destination
SMF · Sacramento, CA
Flight plan
IFR
Airport
PHX · Phoenix Sky Harbor
Equipment
Data recorder, Auto-pilot, Stall warning system, Onboard weather, Electronic multifunction display, Heads up display, Electronic primary flight display

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
54
Injuries
None
Certificates
Airline transport, Flight instructor, Flight engineer
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
July 24, 2016
Seat
Left
Restraint
5-point
Flight hours
19,100 total · 13,275 in this make and model · 13,150 as pilot in command · 238 in the last 90 days · 75 in the last 30 days · 6 in the last 24 hours
Role
Co-pilot
Age
48
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Seat
Right
Restraint
5-point
Flight hours
7,537 total · 3,737 in this make and model · 1,120 as pilot in command · 190 in the last 90 days · 70 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night
Wind
320° at 8 knots
Temperature
72 °F
Altimeter
29.97 inHg
Observed at
PHX

Docket · 1

The files NTSB released with the investigation on May 30, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 625 KB in all.