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N22092 accident description

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Crash location 40.705278°N, 76.377500°W
Nearest city Pottsville, PA
40.685646°N, 76.195499°W
9.6 miles away
Tail number N22092
Accident date 22 Oct 2017
Aircraft type Cessna 150
Additional details: None

NTSB Factual Report

The pilot reported that, during approach, the automatic weather observation station at the destination airport reported that the wind was from 170° at 12 knots. He added that there was "very massive choppy wind, including what could have been windshear, updrafts, and downdrafts". During the landing roll on runway 11, a wind gust blew the airplane off the runway to the left. The pilot attempted to recover, but the airplane impacted a ditch.

The airplane sustained substantial damage to the fuselage and right wing.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

The Federal Aviation Administration (FAA) inspector reported that, during a postaccident examination, the rudder cable that passed along the left side of the fuselage was separated into three pieces. The rudder cable was covered in debris, which contained red fibers. The rudder cable was splayed and exhibited signatures consistent with tension overload.

The airplane's illustrated parts catalog contained a diagram, titled "Rudder Control System Installation". This diagram displayed the cable along the left side of the fuselage cross over the right side of the airplane, in the tailcone section, and connect to the right side of the rudder horn, which provided right rudder authority.

The airplane's most recent inspection was an annual, conducted 6 months prior to the accident flight.

The FAA inspector interviewed the mechanic who performed the most recent annual inspection. During the interview, the mechanic reported that, during inspections, he uses manufacturer data and the FAA advisory circular, AC 43.13-1B. He further reported, multiple times, that he should probably "tighten up" his inspections.

The FAA's advisory circular, AC 43.13-1B, titled "Acceptable Methods, Techniques, and Practices – Aircraft Inspection and Repair", contains a section titled "Cable System Inspection", which stated:

"Aircraft cable systems are subject to a variety of environmental conditions and deterioration. Wire or strand breakage is easy to visually recognize. Other kinds of deterioration such as wear, corrosion, and/or distortion are not easily seen; therefore, control cables should be removed periodically for a more detailed inspection.

At each annual or 100 hour inspection, all control cables must be inspected for broken wires strands. Any cable assembly that has one broken wire strand located in a critical fatigue area must be replaced."

It further stated:

"Close inspection in these critical fatigue areas, must be made by passing a cloth over the area to snag on broken wires. This will clean the cable for visual inspection, and detect broken wires if the cloth snags on the cable."

NTSB Probable Cause

The failure of the right rudder cable and subsequent loss of directional control during landing.

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