DFW08CA195

NTSB accident investigation · Grumman 164A · Lake Providence, LA · July 22, 2008

Accident · Minor injuriesData collectionFinal report
Date
July 22, 2008, 10:00 local (15:00 UTC)
Place
Lake Providence, LA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N7249Grumman 164A
Defining event
Maneuvering-low-alt flying: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report August 28, 2008
Report
Approved by Office Director
FAA report
20080722841579A
Case key
68500

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 control of the airplane while maneuvering during an aerial application. Contributing to the accident was the wind gust.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeGrumman Acft ENG Cor-Schweizer G-164A: 1 caseAll aircraft: 1,199 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot stated that he had just descended down a line of approximately 100-foot-tall trees in a bi-wing agricultural airplane and entered a swath path that was approximately 3-4 feet high above a rice crop. The normal height for the airplane above this particular crop was about 8 to 12- feet-high. As the pilot attempted to climb to a higher altitude, a wind gust pushed the airplane from the right and off of his swath path. Instead of adjusting for his low altitude first, the pilot attempted to realign the airplane back on the swath path by applying right rudder and slight back pressure on the control stick. As a result, the application of right rudder reduced lift and the airplane's right main wheel struck a levy. The airplane flipped over three times before it came to rest in a near vertical position. Examination of the airplane revealed that the engine was torn from its mounts, and the empennage and tail section separated from the airframe. In addition, the pilot reported that there were no mechanical deficiencies with the airplane.

Factual narrative

The commercial rated pilot stated that he had just descended down a line of approximately 100-foot-tall trees in a bi-wing agricultural airplane and entered a swath path that was approximately 3-4 feet high about a rice crop. The normal height for the airplane above this particular crop was about 8 to 12- feet-high. As the pilot attempted to climb to a higher altitude, a wind gust pushed the airplane from the right and off of his swath path. Instead of adjusting for his low altitude first, the pilot attempted to realigned the airplane back on the swath path by applying right rudder and slight back pressure on the control stick. As a result, the application of right rudder reduced lift and the airplane's right main wheel struck a levy. The airplane flipped over three times before it came to rest in a near vertical position. Examination of the airplane revealed that the engine was torn from its mounts, and the empennage and tail section separated from the airframe. In addition, the pilot reported that there were no mechanical deficiencies with the airplane.

Aircraft

Registration
N7249
Reported as
Grumman 164A
Category
Airplane
Serial number
0163
Engine
Pratt & Whitney 1340, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Carroll Flying Service
Registered owner
Lamar Perry
Airworthiness certificate
Special, Restricted (Special)
Departed
Bayou Meadow, LA
Destination
OM8 · Lake Prondue, LA

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
24
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2
Flight hours
1,100 total · 500 in this make and model · 200 in the last 90 days

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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