Narrative:

It was reported that aircraft #3 main brake assembly was contaminated with skydrol. Skydrol was emitting from upper landing gear area and dripping onto lower landing gear area and not leaking from #3 brake assembly. Found no maintenance manual or gpm reference in regards to a contaminated brake assembly. Observed that skydrol was only on outer brake housing area and did not penetrate into brake segmented stators or rotors which was protected by the #3 tire wheel assembly heat shield. Washed #3 brake assembly with soap and water to remove skydrol fluid. A task was later generated to replace #3 brake assembly as a precautionary action.

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Original NASA ASRS Text

Title: A B757-200 MECHANIC EXPLAINS SOURCE OF SKYDROL HYD FLUID ON THE #3 BRAKE ASSEMBLY HEAT SHIELD AS COMING FROM THE UPPER LANDING GEAR AREA.

Narrative: IT WAS RPTED THAT ACFT #3 MAIN BRAKE ASSEMBLY WAS CONTAMINATED WITH SKYDROL. SKYDROL WAS EMITTING FROM UPPER LNDG GEAR AREA AND DRIPPING ONTO LOWER LNDG GEAR AREA AND NOT LEAKING FROM #3 BRAKE ASSEMBLY. FOUND NO MAINT MANUAL OR GPM REF IN REGARDS TO A CONTAMINATED BRAKE ASSEMBLY. OBSERVED THAT SKYDROL WAS ONLY ON OUTER BRAKE HOUSING AREA AND DID NOT PENETRATE INTO BRAKE SEGMENTED STATORS OR ROTORS WHICH WAS PROTECTED BY THE #3 TIRE WHEEL ASSEMBLY HEAT SHIELD. WASHED #3 BRAKE ASSEMBLY WITH SOAP AND WATER TO REMOVE SKYDROL FLUID. A TASK WAS LATER GENERATED TO REPLACE #3 BRAKE ASSEMBLY AS A PRECAUTIONARY ACTION.

Data retrieved from NASA's ASRS site as of May 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.