Aircraft Accident/Incident Report

Mckinney, Texas 75070
Saturday, May 28, 1994 19:05 CDT

NTSB Narrative Summary Released at Completion of Accident

WHILE ON FINAL APPROACH AT APPROXIMATELY 300 FEET AGL, THE AILERONS BECAME LOCKED AND THE PILOT WAS UNABLE TO RETURN THE AIRPLANE TO THE LEVEL FLIGHT ATTITUDE. THE AIRPLANE, CONFIGURED WITH THE LANDING GEAR AND FLAPS RETRACTED, ENTERED A LEFT SPIRAL, COMPLETING TWO 360 DEGREE TURNS PRIOR TO IMPACTING IN A WHEAT FIELD. INVESTIGATION REVEALED THAT A BRASS ALLOY FOREIGN OBJECT ENTERED THE INTERIOR OF THE CONTROL WHEEL THROUGH AN OPEN INSPECTION WINDOW IN THE BACK SIDE OF THE SINGLE THROWOVER TYPE CONTROL YOKE. THE FOREIGN OBJECT, WHICH WAS NOT RECOVERED, BECAME TRAPPED BETWEEN THE SPROCKET AND THE CHAIN, LOCKING THE AILERONS.

NTSB Probable Cause Narrative

THE AILERONS BEING LOCKED BY A FOREIGN OBJECT.

Event Information

Type of Event Accident
Event Date 5/28/1994
Event Day of the Week Saturday
Time of Event 1905
Event Time Zone Central Daylight Time
Event City MCKINNEY
Event State TEXAS
Event Country --
Zipcode of the event site 75070
Event Date Year 1994
Event Date Month 5
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 Partial - limited by pilot
Investigator's weather source Weather Observation Facility
Time of the weather observation 1850 Central Daylight Time
Direction of event from weather observation facility (degrees) 300
Weather Observation Facility ID DAL
Elevation of weather observation facility 495
Distance of event from weather observation facility (units?) 24
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 3400
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 8
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 140
Variable Wind Indicator Unknown
Wind Speed (knots) 14
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 2400
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 542
NTSB Notification Source --
NTSB Notification Date May 31 1994 12:00AM
NTSB Notification Time 930
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Sep 25 2006 4:00PM
User who most recently changed record NTSB\ZUZL
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3956N
NTSB Number FTW94LA189
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BEECH
Aircraft Model 35
Aircraft Series Identifier 35
Aircraft Serial Number D-1216
Certified Max Gross Weight 2550
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 30 1993 12:00AM
Airframe hours since last inspection 250
Airframe Hours 3850
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DUVAL, RANDALL L.
Aircraft Owner Street Address 1920 SHERRYE
Aircraft Owner City PLANO
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 75074
Operator is an individual? --
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? No
Certified for Part 133 or 137 Operation Unknown
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 Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1800
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --