Summary
On July 21, 1996, a Boeing A75N1 (N58712) was involved in an incident near East Troy, WI. All 2 people aboard were uninjured. The aircraft sustained substantial damage.
The National Transportation Safety Board determined the probable cause of this incident to be: Corrosion and fracture of the rudder control horn.
On July 21, 1996, at 1011 central daylight time, a Boeing A75N1, N58712, sustained substantial damage when it nosed over during the landing roll at the East Troy Municipal Airport, East Troy, Wisconsin. The private pilot and one passenger reported no injuries. The personal, 14 CFR Part 91 flight originated in Staughton, Wisconsin, about 0940. Visual meteorological conditions prevailed and no flight plan was filed.
The pilot reported that he flew a "normal" approach to land on runway 08. During the landing roll, the airplane began to "drift" to the right. He "applied the brakes gently" and the airplane nosed over.
The airplane was inspected by a Federal Aviation Administration (FAA) inspector. He reported that the left rudder horn was fractured.
This incident is documented in NTSB report CHI96LA252. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N58712.
Accident Details
Probable Cause and Findings
corrosion and fracture of the rudder control horn.
Aircraft Information
Registered Owner (Current)
Analysis
On July 21, 1996, at 1011 central daylight time, a Boeing A75N1, N58712, sustained substantial damage when it nosed over during the landing roll at the East Troy Municipal Airport, East Troy, Wisconsin. The private pilot and one passenger reported no injuries. The personal, 14 CFR Part 91 flight originated in Staughton, Wisconsin, about 0940. Visual meteorological conditions prevailed and no flight plan was filed.
The pilot reported that he flew a "normal" approach to land on runway 08. During the landing roll, the airplane began to "drift" to the right. He "applied the brakes gently" and the airplane nosed over.
The airplane was inspected by a Federal Aviation Administration (FAA) inspector. He reported that the left rudder horn was fractured. No other evidence of mechanical malfunction was reported.
The rudder horn was examined by an engineering technician in the NTSB materials laboratory. In his factual report, the technician reported that the fracture "showed no evidence of progressive cracking, such as fatigue. The fracture was typical of an overstress separation. There was thinning of the wall and corrosion pits on the inside surface of the tube... ." Measurements of some of the corrosion pits revealed that the thickness of the .035 inch wall tubing was corroded to a thickness of .008 inches in some areas. "There was no indication that any of the corrosion pits had penetrated through the tube to the outside surface."
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI96LA252