A PA22 pilot reports that the left medium large transport brake locked on landing forcing a hard 180...

Attributes
ACN	733554
Time
Date	200703
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Piper Single Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	landing : roll ground : maintenance
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : commercial pilot : instrument
Experience	flight time last 90 days : 50 flight time total : 1900 flight time type : 100
ASRS Report	733554
Events
Anomaly	aircraft equipment problem : critical excursion : taxiway other anomaly
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Approach to landing was normal; wind calm; with windsock showing calm. After touching down in a 3-POINT landing; the aircraft rolled out and started moving right of centerline. When I applied the brakes; the aircraft swerved hard left off the runway and spun 180 degrees breaking the right main landing gear. Both occupants exited with no injuries. I am unsure what caused the incident. It appears after exiting the aircraft that the left tire locked and skidded even though the right tire did not. The WX in my opinion played no factor as there was no ceiling; unlimited visibility and calm winds. I believe that there was some type of malfunction with the brakes causing one tire to skid and the other to not. Callback conversation with reporter revealed the following information: the reporter stated that although the brake has yet to be taken apart; he is repairing the aircraft and hasn't gotten to the brake yet. He believes based on the way the aircraft felt and the skid marks that the left brake cylinder locked while the right functioned normally.

Original NASA ASRS Text

Title: A PA22 PILOT REPORTS THAT THE L MLG BRAKE LOCKED ON LANDING FORCING A HARD 180° TURN BREAKING THE R MLG IN THE PROCESS.

Narrative: APCH TO LNDG WAS NORMAL; WIND CALM; WITH WINDSOCK SHOWING CALM. AFTER TOUCHING DOWN IN A 3-POINT LNDG; THE ACFT ROLLED OUT AND STARTED MOVING R OF CTRLINE. WHEN I APPLIED THE BRAKES; THE ACFT SWERVED HARD L OFF THE RWY AND SPUN 180 DEGS BREAKING THE R MAIN LNDG GEAR. BOTH OCCUPANTS EXITED WITH NO INJURIES. I AM UNSURE WHAT CAUSED THE INCIDENT. IT APPEARS AFTER EXITING THE ACFT THAT THE L TIRE LOCKED AND SKIDDED EVEN THOUGH THE R TIRE DID NOT. THE WX IN MY OPINION PLAYED NO FACTOR AS THERE WAS NO CEILING; UNLIMITED VISIBILITY AND CALM WINDS. I BELIEVE THAT THERE WAS SOME TYPE OF MALFUNCTION WITH THE BRAKES CAUSING ONE TIRE TO SKID AND THE OTHER TO NOT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE REPORTER STATED THAT ALTHOUGH THE BRAKE HAS YET TO BE TAKEN APART; HE IS REPAIRING THE ACFT AND HASN'T GOTTEN TO THE BRAKE YET. HE BELIEVES BASED ON THE WAY THE ACFT FELT AND THE SKID MARKS THAT THE L BRAKE CYLINDER LOCKED WHILE THE R FUNCTIONED NORMALLY.

Data retrieved from NASA's ASRS site as of January 2009 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 PA22 pilot reports that the left medium large transport brake locked on landing forcing a hard 180° turn breaking the right medium large transport in the process.