Low time pilot loses control of small aircraft on landing rollout and has runway excursion.

Attributes
ACN	129436
Time
Date	198911
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pwk
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	ground other : taxi landing other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 32 flight time total : 119 flight time type : 73
ASRS Report	129436
Events
Anomaly	other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : regained aircraft control none taken : unable
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Winds at time of incident were at approximately 220 degrees at 14 KTS, gusting to 20 KTS. After landing on runway 24, I began braking. I also released back pressure on the elevator. At this time the nose began pitching down and the right main gear came off the ground. The aircraft then began to pull to the left. As the right main gear began coming down, the aircraft ran off the left side of 24, knocking 1 of the runway lights off with the right main gear. When the right gear came down, I continued braking, bringing the aircraft to a stop in the grass to the left of 24 and before 16. A possible cause is that the winds may have been swirling and I may have caught a tailwind on the right side, causing the nose to pitch down. Also possible I may have released the back pressure on the elevator too soon, causing the nose to pitch down. It may also have been a combination of both. The airplane I was flying was undamaged and the passenger I was carrying and myself were unharmed.

Original NASA ASRS Text

Title: LOW TIME PLT LOSES CONTROL OF SMA ON LNDG ROLLOUT AND HAS RWY EXCURSION.

Narrative: WINDS AT TIME OF INCIDENT WERE AT APPROX 220 DEGS AT 14 KTS, GUSTING TO 20 KTS. AFTER LNDG ON RWY 24, I BEGAN BRAKING. I ALSO RELEASED BACK PRESSURE ON THE ELEVATOR. AT THIS TIME THE NOSE BEGAN PITCHING DOWN AND THE RIGHT MAIN GEAR CAME OFF THE GND. THE ACFT THEN BEGAN TO PULL TO THE LEFT. AS THE RIGHT MAIN GEAR BEGAN COMING DOWN, THE ACFT RAN OFF THE LEFT SIDE OF 24, KNOCKING 1 OF THE RWY LIGHTS OFF WITH THE RIGHT MAIN GEAR. WHEN THE RIGHT GEAR CAME DOWN, I CONTINUED BRAKING, BRINGING THE ACFT TO A STOP IN THE GRASS TO THE LEFT OF 24 AND BEFORE 16. A POSSIBLE CAUSE IS THAT THE WINDS MAY HAVE BEEN SWIRLING AND I MAY HAVE CAUGHT A TAILWIND ON THE RIGHT SIDE, CAUSING THE NOSE TO PITCH DOWN. ALSO POSSIBLE I MAY HAVE RELEASED THE BACK PRESSURE ON THE ELEVATOR TOO SOON, CAUSING THE NOSE TO PITCH DOWN. IT MAY ALSO HAVE BEEN A COMBINATION OF BOTH. THE AIRPLANE I WAS FLYING WAS UNDAMAGED AND THE PAX I WAS CARRYING AND MYSELF WERE UNHARMED.

Data retrieved from NASA's ASRS site as of August 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.