Summary
On August 06, 2008, a Grumman G-164A (N7487) was involved in an incident near Walsh, CO. 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 total failure of a cylinder head assembly. Contributing to the accident was the lack of suitable terrain for a forced landing.
On August 6, 2008, approximately 0700 mountain daylight time, a Grumman G-164A, N7487, registered to and operated by Doyles Ag Services, and piloted by a commercial pilot, was substantially damaged when it nosed over on soft terrain following a loss of power while maneuvering near Walsh, Colorado. Visual meteorological conditions prevailed at the time of the accident. The aerial application flight was being conducted under the provisions of Title 14 Code of Federal Regulations (CFR) Part 137 without a flight plan. The pilot was not injured. The local flight originated from Springfields (8V7), Colorado, approximately 0630.
The pilot said he was spraying a corn field southeast of Walsh.
This incident is documented in NTSB report DEN08CA135. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N7487.
Accident Details
Probable Cause and Findings
The total failure of a cylinder head assembly. Contributing to the accident was the lack of suitable terrain for a forced landing.
Aircraft Information
Registered Owner (Historical)
Analysis
On August 6, 2008, approximately 0700 mountain daylight time, a Grumman G-164A, N7487, registered to and operated by Doyles Ag Services, and piloted by a commercial pilot, was substantially damaged when it nosed over on soft terrain following a loss of power while maneuvering near Walsh, Colorado. Visual meteorological conditions prevailed at the time of the accident. The aerial application flight was being conducted under the provisions of Title 14 Code of Federal Regulations (CFR) Part 137 without a flight plan. The pilot was not injured. The local flight originated from Springfields (8V7), Colorado, approximately 0630.
The pilot said he was spraying a corn field southeast of Walsh. As he was making an aerial application pass, a cylinder on the engine cracked --- "blew a cylinder" --- and the engine lost power. The pilot made a forced landing in a nearby field. The airplane crossed a road at a speed of approximately 25 mph and the tail bounced up in the air. After crossing the road, the main tires settled into soft earth and the airplane nosed over. In addition to a bent propeller and "minor top wing damage," the vertical stabilizer was crushed.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# DEN08CA135