Narrative:

On taxi out from ramp, taxiing to runway, after taxiing for about 20 mins, a flat tire was suspected and confirmed by a flight attendant. After talking to company maintenance, 2 tires were now flat. By the time company maintenance arrived, 4 main tires were flat. Suspected fuse melting and cargo overweight. Other than flats on an active taxiway, disabling the aircraft, no passenger or property to my knowledge were hurt or damaged. The passenger were loaded on bus and taken back to the terminal and the baggage was then taken to the next aircraft. On taxi out, we were 29027 pounds. Takeoff weight is 29000 pounds, so we had to taxi slowly to burn off excess fuel. After the incident, the passenger and cargo were transported to another aircraft where the crew chief informed me (the captain) that the bags were too heavy and had some taken off. The second flight's cargo was heavier than the first, with bags taken off and no additional cargo added. That is why excess cargo weight is also suspected in the flat tires.

Google
 

Original NASA ASRS Text

Title: LTT CREW HAD TIRES GO FLAT AFTER AN EXTENDED TAXI.

Narrative: ON TAXI OUT FROM RAMP, TAXIING TO RWY, AFTER TAXIING FOR ABOUT 20 MINS, A FLAT TIRE WAS SUSPECTED AND CONFIRMED BY A FLT ATTENDANT. AFTER TALKING TO COMPANY MAINT, 2 TIRES WERE NOW FLAT. BY THE TIME COMPANY MAINT ARRIVED, 4 MAIN TIRES WERE FLAT. SUSPECTED FUSE MELTING AND CARGO OVERWT. OTHER THAN FLATS ON AN ACTIVE TXWY, DISABLING THE ACFT, NO PAX OR PROPERTY TO MY KNOWLEDGE WERE HURT OR DAMAGED. THE PAX WERE LOADED ON BUS AND TAKEN BACK TO THE TERMINAL AND THE BAGGAGE WAS THEN TAKEN TO THE NEXT ACFT. ON TAXI OUT, WE WERE 29027 LBS. TKOF WT IS 29000 LBS, SO WE HAD TO TAXI SLOWLY TO BURN OFF EXCESS FUEL. AFTER THE INCIDENT, THE PAX AND CARGO WERE TRANSPORTED TO ANOTHER ACFT WHERE THE CREW CHIEF INFORMED ME (THE CAPT) THAT THE BAGS WERE TOO HVY AND HAD SOME TAKEN OFF. THE SECOND FLT'S CARGO WAS HEAVIER THAN THE FIRST, WITH BAGS TAKEN OFF AND NO ADDITIONAL CARGO ADDED. THAT IS WHY EXCESS CARGO WT IS ALSO SUSPECTED IN THE FLAT TIRES.

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.