N16214

Substantial
None

Waco EQC-6S/N: 4425

Accident Details

Date
Wednesday, April 5, 2006
NTSB Number
CHI06CA106
Location
Battle Creek, MI
Event ID
20060418X00452
Coordinates
42.307220, -85.251388
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
1
Total Aboard
1

Probable Cause and Findings

The maintenance facility failed to properly install and inspect the rudder cable system resulting in the reversed rudder condition which made directional control not possible during the aborted takeoff. A contributing factor was an inadequate preflight inspection by the pilot.

Aircraft Information

Registration
Make
WACO
Serial Number
4425
Engine Type
Reciprocating
Year Built
1936
Model / ICAO
EQC-6WACC
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1
Seats
5
FAA Model
EQC-6

Registered Owner (Current)

Name
POPLAR GROVE AIRMOTIVE INC
Address
11619 IL ROUTE 76
City
POPLAR GROVE
State / Zip Code
IL 61065-8827
Country
United States

Analysis

The single-engine biplane sustained substantial damage during an aborted takeoff when the airplane veered sharply to the left during takeoff roll, and the right wing and right horizontal stabilizer impacted the runway. The pilot reported that he used braking action to change direction when he taxied to the runway for takeoff. He stated that the tailwheel was locked while taxiing. The pilot reported that he could not see the rudder when he checked the flight controls prior to takeoff, and he did not have anyone verify the direction of the rudder when he moved the rudder pedals. Once on the runway he added power for takeoff, but immediately reduced power due to the lack of directional control. He reported that he aborted the takeoff before the airplane reached 30 knots airspeed. He reported the airplane "swerved suddenly and extremely sharply to the left causing the wingtips to scrape the runway."

The inspection of the airplane revealed that the rudder control cables were rigged backwards. The airplane had undergone maintenance to have the original cable operated brakes replaced with hydraulic brakes. After the hydraulic brakes had been installed by the maintenance facility, the rudder cables were improperly rigged to the control surface. The maintenance facility's inspection of the hydraulic brake installation did not have a procedure in its inspection checklist that required an inspection of the rudder cable installation. The maintenance facility's inspection of the brakes did not detect the misrigged rudder cables.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI06CA106