Service difficulty report · Brake · Boeing 767322

Difficulty date
April 25, 2026
Submitted
April 28, 2026
Operation
Air carrier
Aircraft
N657UA
Make and model
Boeing 767322
Aircraft serial
27112
Aircraft time
128,671 hours, 19,670 cycles
Part
Brake
Part number
26124121A
Part serial
2596
Condition
Failed
Location
Zone 700
Part time
25,673 hours, 19,107 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

NUMBER 5 BRAKE UNIT, CARBON PACK DAMAGED & BROKEN. EVIDENCE OF OVERHEAT DUE TO SMOKE & VISUAL HEAT DAMAGE. AMM 32-41-08/201 SERVICE TIP FOR GRABBING BRAKES. NR 5 BRAKE TEMPERATURE AT 2, NR 6 AT 1, NR 7 AT 2, NR 8 AT 2. NO ISSUES REPORTED FROM PILOTS EITHER. BRAKES DEEMED TO BE GRABBING AND NO SIGNS OF OVERHEAT CONDITION. SMOKING WAS VERY LIGHT, STATOR DISCOLOURATION DUE TO GRABBING. NO HISTORY OF BRAKES GRABBING SO THIS IS THE FIRST WRITE UP IAW SERVICE TIP. WHEEL INSPECTION CARRIED OUT IAW 32-41-08-601. BRAKE UNIT REQUIRED REPLACING DUE TO STATOR DISINTEGRATION. AXLE SHOWED NO SIGNS OF DISCOLOURATION/ HEAT DAMAGE.