Aircraft Accident/Incident Report

Lewisville, Texas 75022
Thursday, October 3, 2002 14:40 CDT

NTSB Narrative Summary Released at Completion of Accident

During cruise flight, the left aileron separated from one attach point, and the pilot executed a forced landing to a field. Prior to the accident flight, the airplane underwent maintenance for two outstanding service bulletins. During compliance with one of the service bulletins, the left aileron would have been removed and reinstalled. The pilot confirmed with the service center personnel that the maintenance on the airplane was completed and then proceeded to preflight the airplane. After departure, the airplane was level at 2,000 feet mean sea level (msl) for approximately one minute, the pilot noticed that the airplane began "pulling" to the left, and the left aileron was separated at one hinge attach point. The pilot then flew the airplane toward an unpopulated area, shutdown the engine, and deployed the aircraft's ballistic parachute system. Subsequently, the airplane descended to the ground with the aid of the parachute canopy and came to rest upright in a field of mesquite trees. Examination of the left aileron and the airframe aileron hinges revealed that the outboard aileron hinge bolt was missing, and no evidence of safety wire noted. According to maintenance manual procedures, the bolt and washer hardware were to be torqued to a measured 20-25 inch pounds, then safety wired to a actuation fitting. After installation, the manual required a verification of proper hinge bolt installation and torque on the outboard hinge.

NTSB Probable Cause Narrative

The improper reinstallation of the left aileron by maintenance personnel. A contributing factor was the non-suitable terrain for the forced landing.

Event Information

Type of Event Accident
Event Date 10/3/2002
Event Day of the Week Thursday
Time of Event 1440
Event Time Zone Central Daylight Time
Event City Lewisville
Event State TEXAS
Event Country --
Zipcode of the event site 75022
Event Date Year 2002
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 325811N
Event Location Longitude 0965019W
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1353 Central Daylight Time
Direction of event from weather observation facility (degrees) 300
Weather Observation Facility ID DTO
Elevation of weather observation facility 642
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 4500
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 32
Dew Point at event time (in degress fahrenheit) 19
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 15
Altimeter Setting at event time (in. Hg) 29.8
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 14262
NTSB Notification Source FAA Operations Center
NTSB Notification Date Oct 3 2002 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Nov 25 2003 11:36AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Fort Worth, Texas

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1223S
NTSB Number FTW03LA005
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cirrus Design Corp.
Aircraft Model SR-22
Aircraft Series Identifier --
Aircraft Serial Number 105
Certified Max Gross Weight 3400
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Oct 3 2002 12:00AM
Airframe hours since last inspection 1
Airframe Hours 145
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name NS Enterprises, Inc.
Aircraft Owner Street Address 1400 Turtle Creek Blvd.
Aircraft Owner City Dallas
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 75207
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code ADS
Departure City Addison
Departure State TX
Departure Country USA
Departure Time 1430
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code RBD
Destination City Dallas
Destination State TX
Destination Country USA
Specific Phase of Flight Climb - to cruise
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Sep 4 2003 2:30PM
User who most recently changed record CASH
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --