Tail dragger pilot loses control of aircraft on landing procedure rollout in downwind landing.

Attributes
ACN	237905
Time
Date	199303
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mht
State Reference	NH
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
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 : 4 flight time total : 200 flight time type : 67
ASRS Report	237905
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	conflict : ground critical other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While doing a wheel landing at the manchester airport, the aircraft swerved to the left. Applying full right rudder had no effect. Differential braking stopped the swerve, but I was unable to realign the plane with the runway before it left the pavement. The plane left the runway and rolled into a mixture of melting snow and mud. When the plane hit a foot-deep snowdrift, it flipped over onto its back. I feel that this problem can be prevented by greater experience with wheel lndgs, and in particular by learning to lower the tailwheel before the rudder loses its effectiveness. A contributing factor to the early loss of rudder effectiveness is that I had about a 5 KT tailwind during this landing. A tailwind will cause the rudder to lose effectiveness earlier than expected. In the future, I will be more aware of this factor.

Original NASA ASRS Text

Title: TAIL DRAGGER PLT LOSES CTL OF ACFT ON LNDG PROC ROLLOUT IN DOWNWIND LNDG.

Narrative: WHILE DOING A WHEEL LNDG AT THE MANCHESTER ARPT, THE ACFT SWERVED TO THE L. APPLYING FULL R RUDDER HAD NO EFFECT. DIFFERENTIAL BRAKING STOPPED THE SWERVE, BUT I WAS UNABLE TO REALIGN THE PLANE WITH THE RWY BEFORE IT LEFT THE PAVEMENT. THE PLANE LEFT THE RWY AND ROLLED INTO A MIXTURE OF MELTING SNOW AND MUD. WHEN THE PLANE HIT A FOOT-DEEP SNOWDRIFT, IT FLIPPED OVER ONTO ITS BACK. I FEEL THAT THIS PROB CAN BE PREVENTED BY GREATER EXPERIENCE WITH WHEEL LNDGS, AND IN PARTICULAR BY LEARNING TO LOWER THE TAILWHEEL BEFORE THE RUDDER LOSES ITS EFFECTIVENESS. A CONTRIBUTING FACTOR TO THE EARLY LOSS OF RUDDER EFFECTIVENESS IS THAT I HAD ABOUT A 5 KT TAILWIND DURING THIS LNDG. A TAILWIND WILL CAUSE THE RUDDER TO LOSE EFFECTIVENESS EARLIER THAN EXPECTED. IN THE FUTURE, I WILL BE MORE AWARE OF THIS FACTOR.

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.