A pitts S2B departed the runway at stk on landing. The pilot reported that the aircraft failed to re...

Attributes
ACN	438307
Time
Date	199905
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : stk.airport
State Reference	CO
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	S-2 All Series
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	landing : roll
Route In Use	approach : visual
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 27 flight time total : 1000 flight time type : 160
ASRS Report	438807
Person 2
Affiliation	government : faa
Function	other personnel other
Events
Anomaly	aircraft equipment problem : critical excursion : runway other anomaly
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact none taken : insufficient time
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Pilot and passenger were landing at stk following a VFR cross country flight from apa. Unicom reported winds from 240 degrees at 2 KTS. I elected to land on runway 33. During the high speed portion of the landing roll, the aircraft started to veer off track several times, and was straightened successfully using rudder/tailwheel steering. The aircraft then tracked smoothly as it decelerated to approximately 30 KTS (estimated), at which time it suddenly veered left and failed to respond adequately to right rudder and brake. The aircraft went off the side of the runway at approximately midfield, and came to rest on its nose in soft earth. Neither the pilot nor the passenger were injured, and the egress was uneventful. The only obvious damage was to the wood propeller, wheel pants, the spinner, and fabric scrapes of the right aileron and wingtip. Subsequent inspection revealed a slight wrinkle in the fabric of the upper left wing. Because of this possible indication of structural damage, the FSDO was notified (via denver AFSS) on that date.

Original NASA ASRS Text

Title: A PITTS S2B DEPARTED THE RWY AT STK ON LNDG. THE PLT RPTED THAT THE ACFT FAILED TO RESPOND TO FULL R RUDDER AND BRAKE.

Narrative: PLT AND PAX WERE LNDG AT STK FOLLOWING A VFR XCOUNTRY FLT FROM APA. UNICOM RPTED WINDS FROM 240 DEGS AT 2 KTS. I ELECTED TO LAND ON RWY 33. DURING THE HIGH SPD PORTION OF THE LNDG ROLL, THE ACFT STARTED TO VEER OFF TRACK SEVERAL TIMES, AND WAS STRAIGHTENED SUCCESSFULLY USING RUDDER/TAILWHEEL STEERING. THE ACFT THEN TRACKED SMOOTHLY AS IT DECELERATED TO APPROX 30 KTS (ESTIMATED), AT WHICH TIME IT SUDDENLY VEERED L AND FAILED TO RESPOND ADEQUATELY TO R RUDDER AND BRAKE. THE ACFT WENT OFF THE SIDE OF THE RWY AT APPROX MIDFIELD, AND CAME TO REST ON ITS NOSE IN SOFT EARTH. NEITHER THE PLT NOR THE PAX WERE INJURED, AND THE EGRESS WAS UNEVENTFUL. THE ONLY OBVIOUS DAMAGE WAS TO THE WOOD PROP, WHEEL PANTS, THE SPINNER, AND FABRIC SCRAPES OF THE R AILERON AND WINGTIP. SUBSEQUENT INSPECTION REVEALED A SLIGHT WRINKLE IN THE FABRIC OF THE UPPER L WING. BECAUSE OF THIS POSSIBLE INDICATION OF STRUCTURAL DAMAGE, THE FSDO WAS NOTIFIED (VIA DENVER AFSS) ON THAT DATE.

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.

A pitts S2B departed the runway at stk on landing. The pilot reported that the aircraft failed to respond to full right rudder and brake.