Narrative:

I had just landed at ged. The plane was rented. I had about 20 hours in another mooney and nearly 200 hours in complex single-engine airplanes. As I was rolling out, and applying the brakes, the plane suddenly swerved to the right and proceeded to roll off of runway 4 onto wet grass. I thought immediately that I had blown the right main tire. However, after shutting the plane down, I saw that nothing had been damaged (gear, gear doors, tires). I proceeded to call unicom. A small tow truck was dispatched to tow me onto the runway and then in front of the FBO. A further check of the gear and tires revealed no damage. I thought perhaps that some water had infiltrated into the brake mechanism which had then frozen during the flight. My original intention was to fly to phl. Before leaving, though, I decided to do 1 circuit at ged to make sure the gear and brakes were all right. I started the plane off, paid careful attention to test the brakes before and during my taxi to the active runway and took off. The gear retracted and then extended without incident. The landing was without any problems. I then proceeded for the trip to phl. After landing at phl on runway 35, and during the rollout, as I began applying the brakes, the plane again swerved to the right, and off the runway onto the grass. I told the tower what had happened, that the plane and passenger were fine, and told him that I would like to taxi carefully onto the nearest taxiway en route to the FBO. With his concurrence, I did so without incident, shut the plane down, and again inspected the gear, brakes and tires. There was no damage. Before taking off, and at the request of phl tower, I telephoned a supervisor in the tower and explained carefully what had happened, reported that there had been no damage to the aircraft or passenger. I then returned to ged. The flight and landing were without incident. I paid careful attention to keep off the brakes until I had slowed down quite considerably. I then returned to gai, and again landed without incident, keeping off the brakes as long as possible. That day, I reported the incident to the unicom attendant, and, as soon as possible (2 days later -- the following monday) reported what had happened to the chief instructor at gai. I suggested that the plane be grounded and the brakes inspected carefully. I have no idea why the right brake locked up like this. I think that trying to maintain control of the aircraft, without panic, and responding calmly to the incident contributed to the lack of damage to both aircraft and passenger.

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Original NASA ASRS Text

Title: A MOONEY 201 PLT RPTED THAT HE MADE 5 DIFFERENT LNDGS IN AN ACFT, TWO OF WHICH RESULTED IN DEPARTING THE RWY AT 2 DIFFERENT ARPTS.

Narrative: I HAD JUST LANDED AT GED. THE PLANE WAS RENTED. I HAD ABOUT 20 HRS IN ANOTHER MOONEY AND NEARLY 200 HRS IN COMPLEX SINGLE-ENG AIRPLANES. AS I WAS ROLLING OUT, AND APPLYING THE BRAKES, THE PLANE SUDDENLY SWERVED TO THE R AND PROCEEDED TO ROLL OFF OF RWY 4 ONTO WET GRASS. I THOUGHT IMMEDIATELY THAT I HAD BLOWN THE R MAIN TIRE. HOWEVER, AFTER SHUTTING THE PLANE DOWN, I SAW THAT NOTHING HAD BEEN DAMAGED (GEAR, GEAR DOORS, TIRES). I PROCEEDED TO CALL UNICOM. A SMALL TOW TRUCK WAS DISPATCHED TO TOW ME ONTO THE RWY AND THEN IN FRONT OF THE FBO. A FURTHER CHK OF THE GEAR AND TIRES REVEALED NO DAMAGE. I THOUGHT PERHAPS THAT SOME WATER HAD INFILTRATED INTO THE BRAKE MECHANISM WHICH HAD THEN FROZEN DURING THE FLT. MY ORIGINAL INTENTION WAS TO FLY TO PHL. BEFORE LEAVING, THOUGH, I DECIDED TO DO 1 CIRCUIT AT GED TO MAKE SURE THE GEAR AND BRAKES WERE ALL RIGHT. I STARTED THE PLANE OFF, PAID CAREFUL ATTN TO TEST THE BRAKES BEFORE AND DURING MY TAXI TO THE ACTIVE RWY AND TOOK OFF. THE GEAR RETRACTED AND THEN EXTENDED WITHOUT INCIDENT. THE LNDG WAS WITHOUT ANY PROBS. I THEN PROCEEDED FOR THE TRIP TO PHL. AFTER LNDG AT PHL ON RWY 35, AND DURING THE ROLLOUT, AS I BEGAN APPLYING THE BRAKES, THE PLANE AGAIN SWERVED TO THE R, AND OFF THE RWY ONTO THE GRASS. I TOLD THE TWR WHAT HAD HAPPENED, THAT THE PLANE AND PAX WERE FINE, AND TOLD HIM THAT I WOULD LIKE TO TAXI CAREFULLY ONTO THE NEAREST TXWY ENRTE TO THE FBO. WITH HIS CONCURRENCE, I DID SO WITHOUT INCIDENT, SHUT THE PLANE DOWN, AND AGAIN INSPECTED THE GEAR, BRAKES AND TIRES. THERE WAS NO DAMAGE. BEFORE TAKING OFF, AND AT THE REQUEST OF PHL TWR, I TELEPHONED A SUPVR IN THE TWR AND EXPLAINED CAREFULLY WHAT HAD HAPPENED, RPTED THAT THERE HAD BEEN NO DAMAGE TO THE ACFT OR PAX. I THEN RETURNED TO GED. THE FLT AND LNDG WERE WITHOUT INCIDENT. I PAID CAREFUL ATTN TO KEEP OFF THE BRAKES UNTIL I HAD SLOWED DOWN QUITE CONSIDERABLY. I THEN RETURNED TO GAI, AND AGAIN LANDED WITHOUT INCIDENT, KEEPING OFF THE BRAKES AS LONG AS POSSIBLE. THAT DAY, I RPTED THE INCIDENT TO THE UNICOM ATTENDANT, AND, AS SOON AS POSSIBLE (2 DAYS LATER -- THE FOLLOWING MONDAY) RPTED WHAT HAD HAPPENED TO THE CHIEF INSTRUCTOR AT GAI. I SUGGESTED THAT THE PLANE BE GNDED AND THE BRAKES INSPECTED CAREFULLY. I HAVE NO IDEA WHY THE R BRAKE LOCKED UP LIKE THIS. I THINK THAT TRYING TO MAINTAIN CTL OF THE ACFT, WITHOUT PANIC, AND RESPONDING CALMLY TO THE INCIDENT CONTRIBUTED TO THE LACK OF DAMAGE TO BOTH ACFT AND PAX.

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.