BOEING 737-8H4 near Denver, CO — 2016-10-05

Probable cause

the flight attendant losing her balance as she was removing her carry-on baggage resulted in her falling against an arm rest causing the serious injury.

NTSB narrative

On October 5, 2016, at about 1725 MDT, Southwest Airlines flight 3663, Boeing B737-800, N8324A, after arrival into Denver International Airport (KDEN), Denver, Colorado, the "B" position flight attendant lost her balance while retrieving her carryon bag from an overhead bin. The flight attendant fell against a seat arm rest near her right rib area. She was examined by paramedics and later escorted to a local hospital for further evaluation. An X-ray identified the flight attendant had sustained a fractured rib. The flight was operated as a 14 Code of Federal Regulations Part 121 domestic passenger flight from Salt Lake City International Airport (KSLC) , Salt Lake City, Utah, with 2 pilots, 4 flight attendants and 173 passengers on board. After the event, the injured flight attendant stated they had finished their day in Denver and while retrieving her bag from the overhead bin she stepped back and lost her balance. She thought her foot may have caught on the bar underneath a seat. She fell onto a row of seats making contact with an arm rest. She heard a crack in her rib area and it was difficult to breathe. The "C" flight attendant got help, the crew came back and paramedics were called.

Analysis

Primary failure mode

Human factors

First missed decision gate

Flight attendant could have secured bag before stepping back to prevent fall.

NTSB coding

• Cabin safety event · Standing-engine(s) not oper

Evidence available

• 2 docket documents

Docket documents2

• Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1form
• Crew Statementsinterview

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