N779EFGRUMMAN G1642012-06-07 NTSB Accident Report

Substantial
None

GRUMMAN G164S/N: 474B

Summary

On June 07, 2012, a Grumman G164 (N779EF) was involved in an incident near Higginson, AR. All 1 person aboard were uninjured. The aircraft sustained substantial damage.

The National Transportation Safety Board determined the probable cause of this incident to be: The partial loss of engine power for reasons that could not be determined due to impact and fire damage.

On June 7, 2012, approximately 1315 central daylight time, a Grumman G-164B agricultural airplane, N779EF, sustained substantial damage during a forced landing following a partial loss of engine power near Higginson, Arkansas. The commercial pilot, who was the sole occupant, was not injured. The airplane was registered to and operated by J.P. Freppon Flying Service, LLC, of Bald Knob, Arkansas, under the provisions of 14 Code of Federal Regulations Part 137 as an aerial application flight. Visual flight rules (VFR) conditions prevailed for the flight, which did not operate on a VFR flight plan. The local flight was originating at the time of the accident.According to the pilot, he was departing the local airstrip to perform an aerial application when the accident occurred.

This incident is documented in NTSB report CEN12LA352. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N779EF.

Accident Details

Date
Thursday, June 7, 2012
NTSB Number
CEN12LA352
Location
Higginson, AR
Event ID
20120611X12331
Coordinates
35.210556, -91.737503
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
1
Total Aboard
1

Probable Cause and Findings

The partial loss of engine power for reasons that could not be determined due to impact and fire damage.

Aircraft Information

Registration
Make
GRUMMAN
Serial Number
474B
Engine Type
Turbo-shaft
Model / ICAO
G164G64T
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1

Analysis

On June 7, 2012, approximately 1315 central daylight time, a Grumman G-164B agricultural airplane, N779EF, sustained substantial damage during a forced landing following a partial loss of engine power near Higginson, Arkansas. The commercial pilot, who was the sole occupant, was not injured. The airplane was registered to and operated by J.P. Freppon Flying Service, LLC, of Bald Knob, Arkansas, under the provisions of 14 Code of Federal Regulations Part 137 as an aerial application flight. Visual flight rules (VFR) conditions prevailed for the flight, which did not operate on a VFR flight plan. The local flight was originating at the time of the accident.According to the pilot, he was departing the local airstrip to perform an aerial application when the accident occurred. Approximately 50 feet above ground level (agl), the pilot noticed a partial loss of engine power and felt a vibration from the engine. The pilot attempted to dump the load of fertilizer and performed a forced landing to a field. The airplane came to rest upright in a wheat field and a postimpact fire ensued. The fire consumed the airplane.

Post accident examination of the airplane by a Federal Aviation Administration inspector revealed a small crack in the number five cylinder on the Pratt & Whitney R-1340 engine. The engine was not disassembled for further examination, and it could not be determined if the crack was a result of the impact. The pilot thought that a magneto may have failed; however, due to the fire damage, the magnetos and accessories could not be tested. The reason for the partial loss of engine power was not determined.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CEN12LA352