Service difficulty report · Brake Assy · Boeing 767324

Difficulty date
August 10, 2023
Submitted
August 11, 2023
Operation
Air carrier
Aircraft
N686UA
Make and model
Boeing 767324
Aircraft serial
33468
Aircraft time
67,650 hours, 12,153 cycles
Part
Brake Assy
Part number
26124121A
Part serial
AC6686
Condition
Disengaged
Location
Mlg
Part time
67,642 hours, 12,152 cycles
Stage of operation
UK
How discovered
O
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NO6 BRAKE FOUND DESINTEGRATED ON ARRIVAL LHR. BRAKE PISTON STATOR MISSING, CARBON ROTOR FOUND WORN INDICATING STATOR MISSING FOR SOME TIME 32-46-01-004-011. TASK 32-11-20-404-011-004. BRAKE ROD INSTALLATION TO BE INSPECTED UNDER IDT REF GMM 09-10-05. 1 (10). PARTS USED: 40-0602-3-0146,QTY :1 76-3245-9-9001,QTY :1 1894074, QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1015450 SN OFF 4163 TT # 1894074 SN OFF 0006 REF GMM 09-10-05 I 10 B, PIN, END CAP, WASHER AND LOCK BOLT INSTALLED AS PER AMM WITH PROPER ALIGNMENT & THREAD PROTRUSION. BRAKE ROD CORRECTLY ORIENTATED. INSTALLATION CONFIRMED SAFETIED AND SECURE LH MLG GEAR REAR AXLE JACKED IAW AMM TASK 07-11-03-582-001. MLG PHOTO UPDATE OF HEST EVIDENCE INSIDE OF BRAKE HOUSING AND WHEEL PHOTO UPDATE OF HEAT EVIDENCE INSIDE OF BRAKE HOUSING AND WHEEL . #6 MLG BRAKE ASSY REPLACED IAW AMM TASK 32-41-08-404-017. WHEEL #6 POSITION S/N B4163 REMOVED IAW AMM TASK RIM RIM WHEEL #6 FOUND TO HAVE SCORING INTERNALLY AROUND THE TRUMPET. 32-45-01-004-001. MLG BRAKE #6 S/N B2965 REMOVED IAW AMM TASK WHEEL REPLACED IAW AMM TASK 32-45-01-404-027.MLG #6 BRAKE ROD 32-41-08-004-001. BRAKE TEMP SENSOR REMOVED IAW AMM TASK REMOVED FOR BRAKE REPLACEMENT. REINSTALLION ACCOMPLISHED IAW AMM.