Experimental aircraft has brake problem on landing, exits runway.

Attributes
ACN	301569
Time
Date	199504
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : fxe
State Reference	FL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Experimental
Operating Under FAR Part	Part 91
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 18 flight time total : 2531 flight time type : 80
ASRS Report	301569
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Have current medical and BFR. This was a 1 hour local flight following extensive annual inspection. All system nominal. This is a convential gear 40 percent scale P-51 in immaculate condition. During a normal landing, decelerated to allow tail to come down. At approximately 20-30 mph tapped toe brakes to turn off at next taxiway. Left toe brake functioned, but right brake stiff. Therefore, aircraft moved left. At that speed full right rudder unable to correct left drift. Attempted to tap both brakes again. Left brake now caused aircraft into about a 45 degree exit toward runway lights and a sandy area off left side of runway. Pushed harder on right toe brake hoping to remain on runway, however, now brake cylinder released momentarily locking right wheel. Now down to about 10 mph but this caused aircraft to nose over and slide on lower engine cowling about 3 ft. Aircraft stopped nose down 10-15 ft to left of runway 8, near intersection of runway 13-31. Only damage was small nick on 1 propeller, and 3 inch bend on other propeller tip. Also about 4 inch fiberglass hole on lower engine cowling that rubbed on asphalt. No injury to pilot. Aircraft returned to my hangar at fxe for future inspection, and required propeller and engine inspection, and to inspect why right brake cylinder did not respond properly.

Original NASA ASRS Text

Title: EXPERIMENTAL ACFT HAS BRAKE PROB ON LNDG, EXITS RWY.

Narrative: HAVE CURRENT MEDICAL AND BFR. THIS WAS A 1 HR LCL FLT FOLLOWING EXTENSIVE ANNUAL INSPECTION. ALL SYS NOMINAL. THIS IS A CONVENTIAL GEAR 40 PERCENT SCALE P-51 IN IMMACULATE CONDITION. DURING A NORMAL LNDG, DECELERATED TO ALLOW TAIL TO COME DOWN. AT APPROX 20-30 MPH TAPPED TOE BRAKES TO TURN OFF AT NEXT TXWY. L TOE BRAKE FUNCTIONED, BUT R BRAKE STIFF. THEREFORE, ACFT MOVED L. AT THAT SPD FULL R RUDDER UNABLE TO CORRECT L DRIFT. ATTEMPTED TO TAP BOTH BRAKES AGAIN. L BRAKE NOW CAUSED ACFT INTO ABOUT A 45 DEG EXIT TOWARD RWY LIGHTS AND A SANDY AREA OFF L SIDE OF RWY. PUSHED HARDER ON R TOE BRAKE HOPING TO REMAIN ON RWY, HOWEVER, NOW BRAKE CYLINDER RELEASED MOMENTARILY LOCKING R WHEEL. NOW DOWN TO ABOUT 10 MPH BUT THIS CAUSED ACFT TO NOSE OVER AND SLIDE ON LOWER ENG COWLING ABOUT 3 FT. ACFT STOPPED NOSE DOWN 10-15 FT TO L OF RWY 8, NEAR INTXN OF RWY 13-31. ONLY DAMAGE WAS SMALL NICK ON 1 PROP, AND 3 INCH BEND ON OTHER PROP TIP. ALSO ABOUT 4 INCH FIBERGLASS HOLE ON LOWER ENG COWLING THAT RUBBED ON ASPHALT. NO INJURY TO PLT. ACFT RETURNED TO MY HANGAR AT FXE FOR FUTURE INSPECTION, AND REQUIRED PROP AND ENG INSPECTION, AND TO INSPECT WHY R BRAKE CYLINDER DID NOT RESPOND PROPERLY.

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.