Narrative:

Parking brake was not set per QRH procedure. Postflt inspection of the #4 main tire revealed that it was canted inward toward the main landing gear truck at the bottom by about 5-10 degrees. There was smoke coming from the #4 tire/brake assembly. The ramp service personnel provided air from ground unit cooling air truck to cool the right main landing gear. Callback conversation with reporter revealed the following information: the reporter stated that maintenance found the #4 wheel outer bearing had failed and damaged the wheel and brake. The landing was smooth and during the rollout and taxi to the gate nothing abnormal was observed. Alerted by person at gate of smoke from #4 main and per procedures did not set the brakes.

Related reports:

Google
 

Original NASA ASRS Text

Title: AN MD80 AT GATE WAS DISCOVERED BY GND PERSONNEL TO HAVE #4 MAIN WHEEL AND BRAKE ASSEMBLY SMOKING. WHEEL ALSO CANTED INWARD TOWARDS TRUCK AT 10 DEGS. CAUSED BY WHEEL OUTER BEARING FAILURE.

Narrative: PARKING BRAKE WAS NOT SET PER QRH PROC. POSTFLT INSPECTION OF THE #4 MAIN TIRE REVEALED THAT IT WAS CANTED INWARD TOWARD THE MAIN LNDG GEAR TRUCK AT THE BOTTOM BY ABOUT 5-10 DEGS. THERE WAS SMOKE COMING FROM THE #4 TIRE/BRAKE ASSEMBLY. THE RAMP SVC PERSONNEL PROVIDED AIR FROM GND UNIT COOLING AIR TRUCK TO COOL THE R MAIN LNDG GEAR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THAT MAINT FOUND THE #4 WHEEL OUTER BEARING HAD FAILED AND DAMAGED THE WHEEL AND BRAKE. THE LNDG WAS SMOOTH AND DURING THE ROLLOUT AND TAXI TO THE GATE NOTHING ABNORMAL WAS OBSERVED. ALERTED BY PERSON AT GATE OF SMOKE FROM #4 MAIN AND PER PROCS DID NOT SET THE BRAKES.

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.