NTSB CAROL · Event
Event DCA17CA005
Registry · N8324A
FAA Aircraft Registry record.
Make / Model
BOEING 737-8H4
Year of manufacture
2012 · 4 years old at event
TCDS
A16WE · THE BOEING CO
Engine
CFM INTL CFM56-7B27E
Seats / Engines
143 seats · 2 engines
Last airworthiness date
20121102
ADS-B equipped
Yes — Mode-S AB62AD
Registrant of record
UMB BANK NA TRUSTEE
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
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.
Factual 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. 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. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Personnel issues-Task performance-(general)-(general)-Cabin crew - C
Verbatim from NTSB's published report. Source file
NTSB_2016_DCA17CA005.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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