Mt Pleasant Regional Airport
Aircraft Accident/Incident Report

Mount Pleasant, Texas 75455
Sunday, August 1, 2010 12:00 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that he was in level flight with the autopilot engaged when the airplane began an uncommanded roll. The pilot disengaged the autopilot and found that the airplaneā€™s ailerons were inoperative. The pilot made a successful landing using the rudder for directional and roll control. A postaccident examination of the airplane revealed that the right aileron primary control cable was severed where it contacted an idler pulley. That pulley would not rotate due to an out-of-tolerance idler pulley outer bearing that restricted the rotation of the pulley. It is likely that the control cable sliding against the seized pulley caused the cable to wear through. The airplane manufacturer issued a maintenance alert following this incident that highlighted the importance of proper and recurring inspections of the flight control cables and pulleys.

NTSB Probable Cause Narrative

The failure of an aileron control cable due to a seized idler pulley bearing.

Event Information

Type of Event Incident
Event Date 8/1/2010
Event Day of the Week Sunday
Time of Event 1200
Event Time Zone Central Daylight Time
Event City Mount Pleasant
Event State TEXAS
Event Country --
Zipcode of the event site 75455
Event Date Year 2010
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Mt Pleasant Regional Airport
Event Location Nearest Airport ID OSA
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 10
Degrees magnetic from airport --
Airport Elevation 364
Weather Briefing Completeness --
Investigator's weather source Pilot
Time of the weather observation 1600 Coordinated Universal Time? Same as GMT
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID OSA
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation UTC
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 38
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) --
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.87
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29935
NTSB Notification Source Piper Aircraft
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 20 2012 8:42PM
User who most recently changed record snyg
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4184X
NTSB Number CEN10IA453
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? No
Damage None
Aircraft Fire None
Aircraft Explosion --
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-32R-301T
Aircraft Series Identifier --
Aircraft Serial Number 3257200
Certified Max Gross Weight 3600
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats 4
Total number of seats on the aircraft 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 25 2009 12:00AM
Airframe hours since last inspection --
Airframe Hours 2795
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SOUTH CENTRAL LOGISTICS LLC
Aircraft Owner Street Address PO BOX 1540
Aircraft Owner City MOUNT PLEASANT
Aircraft Owner State TX
Aircraft Owner Country USA
Aircraft Owner Zipcode 75456-1540
Operator is an individual? No
Operator Name SOUTH CENTRAL LOGISTICS LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address PO BOX 1540
Operator City MOUNT PLEASANT
Operator State TX
Operator Country USA
Operator Zip code 75456-1540
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code JXI
Departure City Gilmer
Departure State TX
Departure Country USA
Departure Time 1130
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code OSA
Destination City Mount Pleasant
Destination State TX
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 9 2012 12:03PM
User who most recently changed record bakd
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --