Jeffco Airport
Aircraft Accident/Incident Report

Broomfield, Colorado 80021
Friday, February 8, 2002 11:26 MST

NTSB Narrative Summary Released at Completion of Accident

Air traffic control advised the flight crew of possible severe turbulence as they began the en route descent. The captain said she briefed the flight attendant as to the possibility of turbulence. As the airplane continued its descent, the captain turned on the "Fasten Seatbelt/No Smoking" sign. Shortly thereafter, the airplane encountered "severe turbulence." The flight attendant stated that he was out of his seat when he heard the "Fasten Seatbelt/No Smoking" chime. He returned to his seat, but was unable to fasten his seatbelt before the turbulence encounter and was thrown about. The flight crew heard the flight attendant screaming, but were unable to check him due to more demanding flight duties. Priority handling to the airport was requested, and emergency equipment was asked to stand by. The flight attendant was taken to a local hospital where X-rays revealed he had fractured his ankle bone. The flight attendant said he had no recollection of being briefed about possible turbulence by the flight crew.

NTSB Probable Cause Narrative

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

Event Information

Type of Event Accident
Event Date 2/8/2002
Event Day of the Week Friday
Time of Event 1126
Event Time Zone Mountain Standard Time
Event City Broomfield
Event State COLORADO
Event Country --
Zipcode of the event site 80021
Event Date Year 2002
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Jeffco
Event Location Nearest Airport ID BJC
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1053 Mountain Standard Time
Direction of event from weather observation facility (degrees) 265
Weather Observation Facility ID DEN
Elevation of weather observation facility 5431
Distance of event from weather observation facility (units?) 21
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 20000
Lowest Non-Ceiling Height 12000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 11
Dew Point at event time (in degress fahrenheit) -16
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.76
Density Altitude (feet) 6382
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 3
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 12291
NTSB Notification Source FAA COMM CTR
NTSB Notification Date Feb 8 2002 12:00AM
NTSB Notification Time 1151
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Sep 20 2002 10:08AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Denver, Colorado

Aircraft Involved

Aircraft #1

Aircraft Registration Number N434QS
NTSB Number DEN02LA029
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Gulfstream Aerospace
Aircraft Model G-IV
Aircraft Series Identifier --
Aircraft Serial Number 1334
Certified Max Gross Weight 73200
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 16
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Nov 30 2001 12:00AM
Airframe hours since last inspection 340
Airframe Hours 3329
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Executive Jet International
Aircraft Owner Street Address 108 Traders Cross Rd., Suite 200
Aircraft Owner City Bluffton
Aircraft Owner State SC
Aircraft Owner Country USA
Aircraft Owner Zipcode 29910
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Executive/Corporate
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code SJC
Departure City San Jose
Departure State CA
Departure Country USA
Departure Time 825
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code BJC
Destination City Broomfield
Destination State CO
Destination Country USA
Specific Phase of Flight Descent
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Aug 29 2002 1:11PM
User who most recently changed record MCBM
Since inspection or accident Last Inspection
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --