DCA19CA189

NTSB accident investigation · Boeing 767 · San Juan, PR · July 22, 2019

Accident · Serious injuriesClass 4 · Data collectionFinal report
Date
July 22, 2019, 03:17 local (07:17 UTC)
Place
San Juan, PR
Injuries
1 serious, 1 minor, 216 uninjured
Damage
No damage
Phase of flight
Enroute
Aircraft
N663UABoeing 767
Defining event
Enroute-cruise: Turbulence encounter
Weather
Not reported
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Major Investigations Division
Lead agency
Other
Case key
99997

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 encounter with convective turbulence during cruise flight.

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 personnelBoeing 767-322: 2 casesAll 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.

Analysis

On July 22, 2019, about 0317 eastern daylight time, United Airlines flight 860, a Boeing B767-322, N663UA, encountered turbulence during cruise flight about 200 nm north of San Juan, Puerto Rico. Of the 218 passengers and crew onboard, one flight attendant was seriously injured, and one flight attendant sustained minor injuries. The airplane was not damaged. The regularly scheduled international passenger flight was operating under 14 Code of Federal Regulations Part 121 from São Paulo/Guarulhos International Airport (SBGR), Sao Paulo, Brazil, to Washington Dulles International Airport (KIAD), Dulles, Virginia. According to the flight crew, they were in level cruise flight at flight level 360 when they started experiencing some chop. The captain turned on the seatbelt sign and instructed passengers to be seated over the public address system. Shortly after, the airplane experienced 3-5 seconds of moderate turbulence as they penetrated a cloud. The crew reported that the weather radar was operational and not showing any indications of precipitation along the route of flight. When the turbulence occurred, a flight attendant (FA) in the aft galley was reaching for the handset to repeat the seatbelt instructions in Portuguese when she was thrown sideways, then to the ceiling, and then back to the floor. The injured FA was helped to a jumpseat and attended to by a passenger physician for the remainder of the flight. Paramedics met the airplane at the gate in KIAD and the injured FA was transported to the hospital where she was diagnosed with multiple contusions and a fractured vertebra.

Aircraft

Registration
N663UA
Reported as
Boeing 767 (322)
Category
Airplane
Serial number
27160
Built
1993
Engines
Pratt & Whitney PW4000 SER, 24,900 horsepower, turbo fanPratt & Whitney PW4000 SER, 24,900 horsepower, turbo fan
Damage
No damage
Flight
Part 121
Operator
United Air Lines Inc
Registered owner
United Airlines Inc
Airworthiness certificate
Standard, Transport
Departed
SBGR · Sao Paulo, OF
Destination
KIAD · Washington, DC
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
59
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
January 29, 2018
Seat
Left
Flight hours
15,147 total · 2,881 in this make and model · 2,887 as pilot in command · 136 in the last 90 days · 46 in the last 30 days
Role
Co-pilot
Age
40
Injuries
None
Certificate
Airline transport
Medical
Class 1, Without waivers/limitations
Last flight review
January 21, 2018
Seat
Right
Flight hours
1,451 total · 1,231 in this make and model · 175 in the last 90 days · 95 in the last 30 days

Weather

Conditions
Not reported
Turbulence
Moderate