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NTSB accident investigation · Grumman American Avn. G 164A · Welsh, LA · August 28, 2015

Accident · No injuriesData collectionFinal report
Date
August 28, 2015, 15:23 local (20:23 UTC)
Place
Welsh, LA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8761HGrumman American Avn. G 164A
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report November 5, 2015
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
BATON ROUGE FSDO (FAA)
FAA report
20150828015189A
Case key
91940

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 directional control during landing, which resulted in a runway excursion and a ground loop.

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedGrumman American Avn. G-164A: 1 caseAll aircraft: 3,958 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 reported that he was practicing takeoffs and landings in a tailwheel equipped biplane. During the landing roll, the pilot stated that as the tailwheel touched down, the nose of the airplane veered sharply to the left. The pilot attempted to correct with right rudder, but the airplane exited the runway surface and ground looped. During the ground loop, the airplane nosed forward and the top right side of the wing impacted the terrain. The right top wing was substantially damaged. The pilot stated there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that he was practicing takeoffs and landings in a tailwheel equipped biplane. During the landing roll, the pilot stated that as the tailwheel touched down, the nose of the airplane veered sharply to the left. The pilot attempted to correct with right rudder, but the airplane exited the runway surface and ground looped. During the ground loop, the airplane nosed forward and the top right side of the wing impacted the terrain. The right top wing was substantially damaged. The pilot stated there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N8761H
Reported as
Grumman American Avn. G 164A (A)
Category
Airplane
Serial number
1516
Built
1976
Airframe hours
1,457
Engine
Pratt & Whitney 985 14B, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Gulf Coast Air
Registered owner
Lejeune Aerial Applications LLC
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 8, 2015
Departed
6R1 · Welsh, LA
Destination
6R1 · Welsh, LA
Airport
6R1 · Welsh, runway 25, 2,700 × 50 ft, asphalt

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
46
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
July 9, 2014
Seat
Center
Restraint
3-point
Flight hours
525 total · 50 in this make and model · 4 as pilot in command · 80 in the last 90 days · 40 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 59 °F
Altimeter
29.97 inHg
Observed at
3R7, 8 nm away

Docket · 3

The files NTSB released with the investigation on October 29, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.9 MB in all.

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 N8761H · 1

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