FTW88FA125

NTSB accident investigation · Piper PA-28-236 · Anson, TX · June 26, 1988

Accident · FatalField investigationFinal report
Date
June 26, 1988, 14:47 local (19:47 UTC)
Place
Anson, TX
Injuries
4 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N2889NPiper PA-28-236
Weather
Visual (VMC) · Day
Status
Completed · report October 6, 1989
Report
Approved by Office Director
FAA report
19880626071399A
Case key
22556

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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Probable cause

Inadequate weather evaluation-pic; flight into known adverse weather, inadvertent-pic; design stress limits exceeded by PIC; thunderstorm

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.

In flight encounter with weatherCruise - normal
Weather condition - thunderstorm,level iiFactor
Weather condition - turbulence(thunderstorms)Factor
Weather evaluation - misjudgedPilot in commandCause
Flight into known adverse weather - inadvertentPilot in commandCause
Airframe/component/system failure/malfunctionManeuvering
Design stress limits of aircraft - exceededPilot in commandCause
Spatial disorientationPilot in commandCause
Wing - separation
Wing - overloadFactor
Horizontal stabilizer surface - separation
Horizontal stabilizer surface - overloadFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The plt encountered forecast tstms en route. At 1430 CDT, the plt had rptd 2400 ft MSL, climbing to his cruise altitude at 8000 ft. at 1440, the plt requested, and deviation around weather was approved. The plt did not report further difficulty, but loss of control and an in-flight breakup of the acft occurred shortly thereafter. Weather and radar data indicate that the airplane broke up near the edge of a level two thunderstorm. Heavy rain and lightning were reported by local residents. The outboard end of the left wing and the stabilator had separated in-flight. The left wing failed in positive overload. Although the right wing had not separated, it also revealed damage fm high positive loading. The stabilator fractures indicated torsional overload. Both plts held pvt pilot certificates and were instrument-rated.

Aircraft

Registration
N2889N
Reported as
Piper PA-28-236
Category
Airplane
Serial number
28-7911229
Airframe hours
910
Engine
Lycoming O-540-J3A5D, 235 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Gladys Harr, doing business as Dakotanauts
Registered owner
Gladys Harr
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 1, 1987 · 68 hours before
Departed
ABI · Abilene, TX
Destination
LBB · Lubbock, 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
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
760 total

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 7 knots
Visibility
10 statute miles
Lowest ceiling
4,000 ft broken
Temperature
75 °F, dew point 70 °F
Altimeter
29.00 inHg
Observed at
ABI, 16 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.