No fatalities

Flight Attendant Fractures Ankle During Severe Turbulence (N434QS)

Broomfield, CO, US

On February 8, 2002, a Gulfstream Aerospace G-IV (registration N434QS) was involved in an aviation accident near Broomfield, CO. No fatalities were reported. Investigators recorded the probable cause as: the flight attendant's failure to fasten his seatbelt when warned of possible turbulence. A contributing factor was the severe turbulence. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards
Aircraft registered N434QS
Aircraft registered N434QS. Photo: Acroterion / CC BY-SA 4.0, via Wikimedia Commons

A flight attendant sustained a fractured ankle after being thrown about during severe turbulence. Air traffic control had warned of possible severe turbulence, and the captain activated the seatbelt sign before the encounter.

Incident Overview

During an en-route descent, air traffic control advised the flight crew of possible severe turbulence. The captain subsequently briefed the flight attendant about the potential for turbulence and turned on the "Fasten Seatbelt/No Smoking" sign. Shortly after, the airplane encountered severe turbulence.

Flight Attendant's Experience

The flight attendant stated he was out of his seat when he heard the seatbelt chime. He returned to his seat but was unable to fasten his seatbelt before the turbulence hit and was thrown about the cabin. The flight crew heard him screaming but could not attend to him due to more demanding flight duties.

Post-Event Actions

The flight crew requested priority handling to the airport and asked for emergency equipment to stand by. Upon landing, the flight attendant was taken to a local hospital, where X-rays revealed a fractured ankle bone. The flight attendant reported no recollection of being briefed by the flight crew about the possibility of turbulence.

Investigation Notes

The incident highlights the challenges of securing cabin crew during short-notice turbulence. The flight attendant's inability to fasten his seatbelt before the turbulence encounter resulted in injury.

Frequently asked questions

What happened in the 8 Feb 2002 Gulfstream Aerospace G-IV accident near Broomfield, CO?

A flight attendant sustained a fractured ankle after being thrown about during severe turbulence. Air traffic control had warned of possible severe turbulence, and the captain activated the seatbelt sign before the encounter.

Were there any fatalities in the 8 Feb 2002 Gulfstream Aerospace G-IV accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 8 Feb 2002 involved a Gulfstream Aerospace G-IV, registration N434QS, at Broomfield, CO.

What was the probable cause of the accident?

the flight attendant's failure to fasten his seatbelt when warned of possible turbulence. A contributing factor was the severe turbulence.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20020315X00350. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.