Loss of aircraft control after landing.

Attributes
ACN	300817
Time
Date	199503
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mli
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 9 flight time total : 95 flight time type : 87
ASRS Report	300817
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : critical other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : regained aircraft control flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was doing touch and goes on runway 31 at mli. The first 2 touch and goes went smoothly. The 3RD also went well until several seconds after touchdown near the centerline of the runway. At that time, the aircraft developed a severe vibration and a pull to the left. My first thought was a flat tire on the left side. I applied brakes and tried to correct for the pull to the left, but the plane continued to the side of the runway. With heavy braking I was able to stop, but the aircraft was several ft to the side of the runway, in the grass. After visual inspection of the left tire, it was still inflated, I taxied onto the runway and back to the FBO. There were no personal injuries and no damage to the aircraft. 1 runway edge light was knocked down. Upon reflection, I believe the cause was nosewheel vibration or shimmy. Because of the possibility of loose or worn parts, I immediately notified the flying club president, so that he could arrange to have this problem corrected.

Original NASA ASRS Text

Title: LOSS OF ACFT CTL AFTER LNDG.

Narrative: I WAS DOING TOUCH AND GOES ON RWY 31 AT MLI. THE FIRST 2 TOUCH AND GOES WENT SMOOTHLY. THE 3RD ALSO WENT WELL UNTIL SEVERAL SECONDS AFTER TOUCHDOWN NEAR THE CTRLINE OF THE RWY. AT THAT TIME, THE ACFT DEVELOPED A SEVERE VIBRATION AND A PULL TO THE L. MY FIRST THOUGHT WAS A FLAT TIRE ON THE L SIDE. I APPLIED BRAKES AND TRIED TO CORRECT FOR THE PULL TO THE L, BUT THE PLANE CONTINUED TO THE SIDE OF THE RWY. WITH HVY BRAKING I WAS ABLE TO STOP, BUT THE ACFT WAS SEVERAL FT TO THE SIDE OF THE RWY, IN THE GRASS. AFTER VISUAL INSPECTION OF THE L TIRE, IT WAS STILL INFLATED, I TAXIED ONTO THE RUNWAY AND BACK TO THE FBO. THERE WERE NO PERSONAL INJURIES AND NO DAMAGE TO THE ACFT. 1 RWY EDGE LIGHT WAS KNOCKED DOWN. UPON REFLECTION, I BELIEVE THE CAUSE WAS NOSEWHEEL VIBRATION OR SHIMMY. BECAUSE OF THE POSSIBILITY OF LOOSE OR WORN PARTS, I IMMEDIATELY NOTIFIED THE FLYING CLUB PRESIDENT, SO THAT HE COULD ARRANGE TO HAVE THIS PROB CORRECTED.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.