Service difficulty report · Brake · Boeing 7879

Difficulty date
February 14, 2021
Submitted
April 8, 2021
Operation
Air carrier
Aircraft
N438AM
Make and model
Boeing 7879
Aircraft serial
43862
Aircraft time
17,760 hours, 1,987 cycles
Part
Brake
Part number
C20648000
Part serial
2194C20648
Condition
Overtemp
Location
Nr 5
Part time
18,453 hours, 2,071 cycles
Stage of operation
IN
How discovered
9
Nature of condition
M
Precautionary procedure
K

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

What was found

DURING TRANSIT CHECK, IT WAS DETECTED HIGH TEMPERATURE IN MAIN BRAKE ASSEMBLY NUMBER 5 WITHOUT FLAT TIRE WITH DISCHARGE THE FIRE EXTINGUISHER IN THE MAIN BRAKE NUMBER 5. MAINTENANCE PERSONNEL PERFORMED HIGH ENERGY STOP / HEAT DAMAGE CONDITION INSPECTION WAS PERFORMED IAW AMM DMC-B787-A-05-51-14-01A-280A-A, DETECTING THE BRAKE NUMBER 5 DAMAGED; SO THE MLG WHEEL AND TIRE ASSEMBLY NUMBER 5 AND MLG BRAKE NUMBER 5 WAS REPLACED IAW AMM DMC-B787-A-32-45-01/07-00A-520A-A/720A-A, TESTED CORRECT.

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