FTW89LA112

NTSB accident investigation · Swift GC-1B · Luther, OK · June 11, 1989

Accident · Minor injuriesLimited investigationFinal report
Date
June 11, 1989, 15:50 local (20:50 UTC)
Place
Luther, OK
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N80791Swift GC-1B
Weather
Visual (VMC) · Day
Status
Completed · report June 10, 1991
Report
Approved by Office Director
FAA report
19890611015159A
Case key
22879

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

Failure of the pilot to maintain adequate airspeed, which resulted in an inadvertent stall. The proximity of the trees were a factor.

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.

Loss of control - in flightApproach - vfr pattern - base leg/base to final
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in commandCause
In flight collision with objectDescent - uncontrolled
Object - tree(s)Factor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The airplane was in the turn to final approach when it stalled. The pilot recovered from the stall, but the plane's right wing hit a treetop & the airplane crashed.

Aircraft

Registration
N80791
Reported as
Swift GC-1B
Category
Airplane
Serial number
194
Airframe hours
1,420
Engine
Continental C-125-2, 125 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Hancock, David H
Registered owner
Hancock, Donald
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 27, 1989 · 29 hours before
Departed
SWO · Stillwater, OK
Airport
NONE · Private, runway 18, 2,100 × 50 ft, grass/turf

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
45
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
562 total · 28 in this make and model · 28 in the last 90 days · 5 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 6 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
81 °F

FAA reports on this event · 1

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

Other investigations on N80791 · 1

Matched to the same aircraft by N-number and date.