Summary
On May 27, 1993, a Grumman G-164A (N4593) was involved in an incident near Weiner, 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: PARTIAL POWER LOSS DUE TO IMPROPER INSTALLATION OF THE LINKAGE CONTROL BRACKET. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.
On May 27, 1993, at approximately 0745 central daylight time, a Grumman G-164A, N4593, was substantially damaged when it nosed over during a forced landing after experiencing a loss of engine power near Weiner, Arkansas. The airplane, flown by a commercial pilot, was on a local aerial application flight. There was no flight plan filed and visual meteorological conditions prevailed throughout the area. The pilot, the sole occupant, was not injured.
According to the pilot, the engine experienced a partial power loss during the turn at the end of a spray run. He stated that he dumped the chemical load, but was unable to sustain flight with the power available. He subsequently executed a forced landing to an open plowed field.
This incident is documented in NTSB report FTW93LA169. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N4593.
Accident Details
Probable Cause and Findings
PARTIAL POWER LOSS DUE TO IMPROPER INSTALLATION OF THE LINKAGE CONTROL BRACKET. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.
Aircraft Information
Registered Owner (Historical)
Analysis
On May 27, 1993, at approximately 0745 central daylight time, a Grumman G-164A, N4593, was substantially damaged when it nosed over during a forced landing after experiencing a loss of engine power near Weiner, Arkansas. The airplane, flown by a commercial pilot, was on a local aerial application flight. There was no flight plan filed and visual meteorological conditions prevailed throughout the area. The pilot, the sole occupant, was not injured.
According to the pilot, the engine experienced a partial power loss during the turn at the end of a spray run. He stated that he dumped the chemical load, but was unable to sustain flight with the power available. He subsequently executed a forced landing to an open plowed field. The field was rough and the airplane nosed over during the landing roll.
Investigation revealed that the control linkage assembly bracket was loose which allowed the condition lever to make an uncommanded move and disturbed the propeller governor, pitch control governor, and fuel control unit settings. Of the three retaining screws, one was missing and the other two were found loose. The airplane's maintenance records indicated that the engine had been installed on April 1, 1993, at the same time the airplane received an annual inspection.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# FTW93LA169