N6761Q

Substantial
None

GRUMMAN ACFT ENG COR-SCHWEIZER G-164AS/N: 1352

Accident Details

Date
Tuesday, September 8, 2009
NTSB Number
CEN09LA574
Location
Kimball, NE
Event ID
20090909X43936
Coordinates
41.229454, -103.649742
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
1
Total Aboard
1

Probable Cause and Findings

A loss of engine power due to improper installation of an oil line fitting resulting in oil depletion.

Aircraft Information

Registration
Make
GRUMMAN ACFT ENG COR-SCHWEIZER
Serial Number
1352
Engine Type
Reciprocating
Year Built
1974
Model / ICAO
G-164AG64T
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1
Seats
1
FAA Model
G-164A

Registered Owner (Current)

Name
HERSHEY FLYING SERVICE INC
Address
PO BOX 148
City
DAVID CITY
State / Zip Code
NE 68632-0148
Country
United States

Analysis

On September 8, 2009, approximately 0830 Mountain Daylight Time, a Grumman G-164A, N6761Q, was substantially damaged during a forced landing near Kimball, Nebraska. The commercial pilot was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the Title 14 Code of Federal Regulations Part 137 aerial application flight. The local flight originated at Western Nebraska Regional Airport/William B. Heilig Field (KBFF), Scottsdale, Nebraska, at 0745.

According to a statement provided by the pilot, the airplane was maneuvered for the last pass of aerial application when the turbo-prop engine lost power and "backfired" several times. He added, that engine power surged several times before he pulled the emergency fuel shut-off handle and set up for a forced landing. The airplane overshot the intended landing area and collided with a fence and terrain before coming to rest in the upright position. Substantial damage was sustained to the airplane's fuselage.

An inspection of the engine by a Federal Aviation Administration inspector revealed that the engine oil supply line was disconnected. Further examination of the oil line fitting revealed signatures consistent with improper thread engagement during installation. An inspection of the airframe did not reveal any anomalies.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CEN09LA574