N56434

Substantial
Minor

Ryan Aeronautical ST3KRS/N: 1560

Accident Details

Date
Saturday, January 6, 2007
NTSB Number
MIA07CA033
Location
Lake Butler, FL
Event ID
20070201X00126
Coordinates
30.018888, -82.577224
Aircraft Damage
Substantial
Highest Injury
Minor
Fatalities
0
Serious Injuries
0
Minor Injuries
2
Uninjured
0
Total Aboard
2

Probable Cause and Findings

a partial loss of engine power due to a disconnected throttle control push-rod, which resulted in a forced landing and collision with trees and the ground.

Aircraft Information

Registration
N56434
Make
RYAN AERONAUTICAL
Serial Number
1560
Engine Type
None
Year Built
1941
Model / ICAO
ST3KRL39
No. of Engines
0

Registered Owner (Historical)

Name
GORDON JOHN B
Address
245 SW PLANTATION TER
Status
Deregistered
City
LAKE CITY
State / Zip Code
FL 32025-0600
Country
United States

Analysis

On January 6, 2007, about 1200 eastern standard time, a Ryan Aeronautical ST3KR, N56434, registered to and operated by an individual, impacted with a tree during a forced landing following a loss of engine power near Lake Butler, Florida, while on a Title 14 CFR Part 91 personal flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The airline transport-rated pilot and passenger received minor injuries; the airplane incurred substantial damage. The flight originated from the Flying Tiger Field Airport, Worthington, Florida, earlier that day, about 1150.

The pilot stated to the FAA inspector that the engine quit without warning and he had to make an emergency landing. He checked the fuel valve, the carburetor heat, and pumped the throttle but nothing seemed to help. During the landing, he was not sure if he clipped a tree during the approach and was slow to flare out, which they hit the ground hard causing him and the passenger to hit the instrument panel during the stop. The pilot recalls that the propeller was still turning during the impact. The pilot did not have any ideas why it quit. The pilot had been giving several rides prior to the accident flight with no problems.

The FAA inspector that conducted the post accident examination of the airplane wreckage stated, during the examination, a short rod that connects the throttle control to the carburetor was discovered lying unattached inside the cowling. It appears that this rod had come loose prior to impact. There were no marks on the rod, the bolt or the bracket that would indicate it was broken during impact. Once this rod is loosen, it would allow the engine to go to idle power.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# MIA07CA033