FTW94LA297

NTSB accident investigation · Weatherly 620TP · Montrose, AR · September 13, 1994

Accident · No injuriesLimited investigationFinal report
Date
September 13, 1994, 10:15 local (15:15 UTC)
Place
Montrose, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N4607CWeatherly 620TP
Weather
Visual (VMC) · Day
Status
Completed · report March 27, 1995
Report
Approved by Office Director
FAA report
19940913026899A
Case key
19160

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

The pilot's failure to maintain airspeed and the resultant aerodynamic stall.

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 - final approach
Airspeed - not maintainedPilot in commandCause
Stall - inadvertentPilot in command
In flight collision with terrain/waterDescent - uncontrolled

Analysis

After reducing power on final approach, the airplane's nose whipped abruptly 30 degrees left, then back to the right. The pilot pushed the stick forward and added left aileron at approximately 30 feet AGL. The airplane then impacted a ditch, slid across a road and came to rest in another ditch. An examination of the airplane revealed no anomalies and the pilot reported he experienced no mechanical problems.

Factual narrative

On September 13, 1994, at 1015 central daylight time, a Weatherly 620TP, N4607C, was substantially damaged following a loss of control during approach near Montrose, Arkansas. The airplane was flown by a commercial pilot for this aerial application flight. Visual meteorological conditions prevailed for the flight and there were no injuries.

According to the pilot, while on final approach he throttled back in preparation for landing, the aircraft's nose then "whipped abruptly 30 degrees left, then back to the right." He lowered the nose and added left aileron at approximately 30 feet AGL. The airplane then impacted in a ditch, slid across a road and came to rest in another ditch.

An examination of the aircraft by a Federal Aviation Administration inspector revealed no anomalies were present and the pilot reported he experienced no mechanical difficulties.

Aircraft

Registration
N4607C
Reported as
Weatherly 620TP
Category
Airplane
Serial number
1508TP
Airframe hours
3,523
Engine
P&W PT-6-20, 575 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Maglothin, James P. Jr.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · February 28, 1994 · 180 hours before

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
40
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
4,200 total · 55 in this make and model · 4,150 as pilot in command · 150 in the last 90 days · 50 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 3 knots
Visibility
4 statute miles
Lowest ceiling
None
Temperature
79 °F
Altimeter
30.00 inHg

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 N4607C · 1

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