Service difficulty report · Brake Assy · Boeing 767323

Difficulty date
August 11, 2022
Submitted
September 21, 2022
Operation
Air carrier
Aircraft
N491AZ
Make and model
Boeing 767323
Aircraft serial
29429
Aircraft time
85,896 hours, 14,621 cycles
System (JASC)
3242 · Brake
Part
Brake Assy
Part number
26124121
Part serial
B4022
Condition
Cracked
Location
Zone 700
Part time
85,896 hours, 14,621 cycles
Stage of operation
LD
How discovered
V
Nature of condition
K, 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 MAIN WHEEL BRAKE ASSEMBLY FOUND DAMAGED DURING POST FLIGHT WALK AROUND, MISSING PIECES OF PRESSURE PLATE AND ROTORS, CRACKED PISTON HOUSING CAUSING FLUID LEAKAGE. BRAKE SEPARATION CAUSED DAMAGE TO THE WHEEL HEAT SHIELD AND PUNCTURED WING TO BODY FAIRING. BRAKE AND WHEEL ASSEMBLY WAS REMOVED AND REPLACED AS PER B767 AMM 32-41-08 AND 32-45-01. WING TO BODY FAIRING WAS TEMPORARILY REPAIRED IN ACCORDANCE WITH AIR TRANSPORT INTERNATIONAL ENGINEERING ORDER 53-767-8485 REV. IR.