FTW86FA107

NTSB accident investigation · Piper PA-31-350 · Huffman, TX · June 13, 1986

Accident · FatalField investigationFinal report
Date
June 13, 1986, 13:03 local (18:03 UTC)
Place
Huffman, TX
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N3539KPiper PA-31-350
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860613024139A
Case key
21910

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

UndeterminedCruise - normal
Reason for occurrence undeterminedCause
Propeller feathering - performedPilot in command
Loss of control - in flightCruise - normal
Airspeed - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

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.

Aircraft

Registration
N3539K
Reported as
Piper PA-31-350
Category
Airplane
Serial number
31-7912116
Engine
Lycoming TIO-540-J2BD, 350 horsepower, reciprocating
Damage
Destroyed
Flight
Business · Part 91
Registered owner
Southern Enterprises, Inc.
Airworthiness certificate
Standard, Normal
Departed
LCH · Lake Charles, LA
Destination
HOU · Houston, TX
Flight plan
IFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
64
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
10,000 total

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 20 knots
Visibility
15 statute miles
Lowest ceiling
2,500 ft broken
Temperature
81 °F, dew point 70 °F
Altimeter
30.00 inHg
Observed at
IAH, 14 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.