Aircraft Accident/Incident Report

Huffman, Texas 77336
Friday, June 13, 1986 13:03 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT WAS BEING VECTORED AROUND THUNDERSTORMS IN THE AREA JUST PRIOR TO THE ACCIDENT. DURING THE LAST RADIO CONTACT THE PILOT WAS ISSUED A VECTOR TO THE DESTINATION AIRPORT. DURING THIS TURN, FOR UNKNOWN REASONS, THE PILOT LOST CONTROL OF THE AIRCRAFT AND DESCENDED FROM THE ASSIGNED ALTITUDE OF 6,000 FT MSL TO THE GROUND IN APPROXIMATELY 40 SECONDS. THE AIRCRAFT REPORTEDLY WAS IN CLEAR WEATHER CONDITIONS AT THIS TIME AND HAD NOT ENCOUNTERED ADVERSE WEATHER DURING THE ENTIRE FLIGHT. THE PILOT DID NOT MENTION ANY PROBLEMS DURING THE RADIO TRAMSNISSION WITH ATC. IMPACT IN A SHALLOW LAKE OCCURRED WHILE IN A NEAR VERTICAL NOSE DOWN ATTITUDE AT A HIGH RATE OF SPEED. THE RIGHT PROPELLER WAS FOUND TO HAVE BEEN FEATHERED AT THE TIME OF IMPACT WHILE THE LEFT PROPELLER WAS SET IN THE CRUISE RANGE. NO EVIDENCE OF ANY PREIMPACT FAILURE OR MALFUNCTION OF THE RIGHT ENGINE OR PROPELLER WAS DISCOVERED DURING POST ACCIDENT TESTS. PATH AND TOXI EXAMS REVEALED NO PHYSIOLOGICAL FACTORS. PLTS FLT TIME RECORDS NOT AVAILABLE AT TIME OF INVESTIGATION.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 6/13/1986
Event Day of the Week Friday
Time of Event 1303
Event Time Zone Central Daylight Time
Event City HUFFMAN
Event State TEXAS
Event Country --
Zipcode of the event site 77336
Event Date Year 1986
Event Date Month 6
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 14
Degrees magnetic from airport 80
Airport Elevation 0
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1252 Central Daylight Time
Direction of event from weather observation facility (degrees) 260
Weather Observation Facility ID IAH
Elevation of weather observation facility 98
Distance of event from weather observation facility (units?) 14
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 2500
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Unknown
Wind Speed (knots) 20
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 Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1610
NTSB Notification Source --
NTSB Notification Date Jun 13 1986 12:00AM
NTSB Notification Time 1405
Fiche Number and/or location -used to find docket information 31988
Date of most recent change to record Jan 2 2001 9:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3539K
NTSB Number FTW86FA107
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-31-350
Aircraft Series Identifier PA-31-350
Aircraft Serial Number 31-7912116
Certified Max Gross Weight 6500
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 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SOUTHERN ENTERPRISES, INC.
Aircraft Owner Street Address P.O. BOX 59996
Aircraft Owner City DALLAS
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 75247
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) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code LCH
Departure City LAKE CHARLES
Departure State LA
Departure Country
Departure Time 1223
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code HOU
Destination City HOUSTON
Destination State TX
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --