Aircraft Accident/Incident Report

Ventura, California 93030
Thursday, December 11, 1997 5:35 PST

NTSB Narrative Summary Released at Completion of Accident

The captain reported that 20 minutes into a smooth flight, and 10 minutes before landing, he felt some light chop so he turned on the seat belt sign. Shortly thereafter, they experienced sudden and violent severe turbulence, seriously injuring the flight attendant. At that time, the flight attendant had completed her service and was about to acknowledge the seat belt sign over the public-address system prior to her being seated for landing. According to the crew, no valid SIGMET was issued and no AIRMET or PIREPS were available.

NTSB Probable Cause Narrative

Seat belt not used. A related factor was the unforecasted severe air turbulence.

Event Information

Type of Event Accident
Event Date 12/11/1997
Event Day of the Week Thursday
Time of Event 535
Event Time Zone Pacific Standard Time
Event City VENTURA
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93030
Event Date Year 1997
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
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 Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 550 Pacific Standard Time
Direction of event from weather observation facility (degrees) 93
Weather Observation Facility ID LAX
Elevation of weather observation facility 126
Distance of event from weather observation facility (units?) 32
Time Zone of the weather observation PST
Lighting Conditions Night/Dark
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 8
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 60
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 16
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1693
NTSB Notification Source --
NTSB Notification Date Dec 11 1997 12:00AM
NTSB Notification Time 700
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:43PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N329AE
NTSB Number LAX98LA057
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Saab-Scania AB (Saab)
Aircraft Model 340B
Aircraft Series Identifier 340B
Aircraft Serial Number 340B-329
Certified Max Gross Weight 27000
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 37
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Nov 1 1997 12:00AM
Airframe hours since last inspection 236
Airframe Hours 11034
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name FLAGSHIP AIRLINES, INC.
Aircraft Owner Street Address P.O. BOX 619616 MD 5661
Aircraft Owner City DFW AIRPORT
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 75261
Operator is an individual? --
Operator Name WINGS WEST
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 835 AIRPORT DR.
Operator City SAN LUIS OBISPO
Operator State CA
Operator Country
Operator Zip code 93401
Operator Code EGF
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code SBA
Departure City SANTA BARBARA
Departure State CA
Departure Country
Departure Time 510
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code LAX
Destination City LOS ANGELES
Destination State CA
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --