FTW96LA070

NTSB accident investigation · Grumman G-164B · Pawnee, OK · December 13, 1995

Accident · No injuriesLimited investigationFinal report
Date
December 13, 1995, 16:20 local (22:20 UTC)
Place
Pawnee, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N6642KGrumman G-164B
Weather
Visual (VMC) · Day
Status
Completed · report February 14, 1996
Report
Approved by Office Director
FAA report
19951213044729A
Case key
19727

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 adequate clearance from the terrain.

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 collision with terrain/waterManeuvering - aerial application
Terrain condition - berm
Clearance - not maintainedPilot in commandCause
Landing gear,main gear - separation
Nose overLanding - roll
Precautionary landing - performedPilot in command

Analysis

The right main landing gear impacted a berm during a spray run and separated. The pilot landed in an open field, and while landing on the remaining main gear, control was lost and the airplane nosed over coming to rest in the inverted position. All four wings sustained structural damage, and the engine mount was deformed.

Factual narrative

On December 13, 1995, at 1620 central standard time, a Grumman G- 164B, N6642K, was substantially damaged upon impact with terrain while maneuvering near Pawnee, Oklahoma. The commercial pilot was not injured. The airplane was been operated by Cassody Flying Service as an aerial application flight under Title 14 CFR Part 137 when the accident occurred. Visual meteorological conditions prevailed for the flight for which a flight plan was not filed.

According to the operator, the right main landing gear impacted a berm during a spraying run. The landing gear separated from the airframe and the pilot attempted to land in an open field to the north. The pilot was unable to control the airplane while landing with only one landing gear and control was lost during the landing roll. The airplane nosed over, coming to rest in the inverted position.

All four wings sustained structural damage and the engine mount was deformed.

Aircraft

Registration
N6642K
Reported as
Grumman G-164B
Category
Airplane
Serial number
403B
Airframe hours
6,653
Engine
P&W R-1340-AN1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Thomas B. Cassody
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · February 26, 1995 · 166 hours before
Departed
NONE · Covington, OK

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
38
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
1,920 total · 230 in this make and model · 1,638 as pilot in command · 10 in the last 90 days · 6 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 7 knots
Visibility
12 statute miles
Lowest ceiling
25,000 ft overcast
Temperature
61 °F, dew point 39 °F
Altimeter
29.00 inHg
Observed at
PNC, 38 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 N6642K · 1

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