Cessna 172RG N6562V

Summary

On 11 May 2004 at about 20:30 local time, a Cessna 172RG registered N6562V was involved in an incident near Chamblee, Georgia, United States. 2 people were on board and nobody was injured. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

11 May 2004 at 20:30

Classification

Incident

Location

Chamblee, Georgia, United States

Nearest airport

Peachtree DeKalb Airport (KPDK)

Coordinates

33.8756, -84.3019

Aircraft

Cessna 172RG

Registration

N6562V

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Chamblee → Unknown

Aircraft damage

Not recorded

Weather

VMC

Light

Day

NTSB number

ATL04IA138

Nobody was injured.

The fatigue fracture of the nosewheel bungee assembly, which restricted the movement of the elevator control. A factor was the inadequate equipment from an unknown source/manufacturer.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The certified flight instructor reported full nose-down elevator deflection could not be achieved in cruise flight. The flight returned to the airport and landed without further incident. Examination revealed the threaded shaft of the nose gear steering bungee assembly was fractured, and the damaged component physically restricted the movement of the elevator control assembly. Metallurgical examination of the shaft revealed fatigue fractures in two locations with no evidence of hardness anomaly and no evidence of improper lubrication. Examination of the profile of the thread relief area of the shaft revealed the region was irregular and asymmetric, and a number of machining grooves were of smaller radii than the 0.050-inch radius specified in Cessna technical drawings. The shaft was absent of identifying markings or a part number, and maintenance logs for the airplane revealed no record of repair or replacement of the component. Federal Aviation Administration Airworthiness Directive (AD) 81-14-06 for the Cessna 172RG requires the replacement of part number 2467003-1 rudder trim/nose gear steering bungee with part number 2467003-6 rudder trim/nose gear steering bungee. Cessna Service Letter SE 80-99 states the new steering bungee part number 2467003-6 "includes a larger diameter jack screw shaft providing substantially greater unit strength and longer service life." Both the AD and the Service Letter are applicable to Cessna 172RG airplanes serial numbers 172RG0001 through 172RG0769. The incident airplane was serial number 172RG0775.

Quoted verbatim from the NTSB record.