MKC89LA105

NTSB accident investigation · Weatherly 620TP · Montrose, AR · May 8, 1989

Accident · No injuriesLimited investigationFinal report
Date
May 8, 1989, 09:00 local (14:00 UTC)
Place
Montrose, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4607CWeatherly 620TP
Weather
Visual (VMC) · Day
Status
Completed · report March 29, 1991
Report
Approved by Office Director
FAA report
19890508011609A
Case key
34787

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 in command to maintain control of the aircraft during landing adversely affected by the existance of a tailwind of average proportions.

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 - on ground/waterLanding - roll
Weather condition - tailwindFactor
Proper touchdown point - not attainedPilot in commandFactor
Wrong runway - selectedPilot in commandCause
Aircraft control - not maintainedPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - ditchFactor

Analysis

The pilot said that while attempting to land down wind, during an aerial application operation, he lost directional control. He overran the airstrip and collided with a ditch causing substantial damage to the acft. Post accident investigation failed to reveal any malfunction or brake failure that might have contributed to the accident. The plt did not file an acc report.

Aircraft

Registration
N4607C
Reported as
Weatherly 620TP
Category
Airplane
Serial number
1508TP
Engine
P&W PT6A-11AG, 500 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Montrose Air Service, Inc.
Airworthiness certificate
Special, Restricted (Special)
Departed
Montrose, AR

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
52
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Flight hours
9,800 total

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 9 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point -0 °F
Altimeter
30.00 inHg
Observed at
GLH, 25 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.

Other investigations on N4607C · 1

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