Service difficulty report · Brake Sys · Boeing 777FS2

Difficulty date
January 18, 2017
Submitted
January 23, 2017
Operation
Air carrier
Aircraft
N864FD
Make and model
Boeing 777FS2
Aircraft serial
37735
Aircraft time
19,145 hours, 3,118 cycles
Part
Brake Sys
Condition
Malfunctioned
Location
Mlg
Stage of operation
TX
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

DURING POST-FLIGHT CHECK FOUND BRAKE UNIT NR 7 WITH TEMP 0 ON GEAR PAGE, BRAKE COLD AT TOUCH. FURTHER TROUBLESHOOTING IAW 32-46-00-810-807, INSPECTED THE NR 7 BRAKE TEMP SENSOR, REMOVED AND REPLACED THE NR 7 BRAKE ASSY IAW MM 32-45-07-04-0, REMOVED AND REPLACED NR 7 HUBCAP IAW 32-45-00-4, ACCOMPLISHED ADJUSTMENT & TEST OF TIRE PRESSURE INDICATION IAW MM 32-49-00-5, INDICATION OPS CHECKED NORMAL. REMOVED AND REPLACED NR 7 BRAKE TEMP SENSOR IAW MM 32-46-03-4, ACCOMPLISHED ADJUSTMENT & TEST OF BRAKE TEMP INDICATION IAW MM 32-46-00-5, ALL TEST PASSED. REMOVED AND REPLACED THE NR 7 WHEEL SPEED TRANSDUCER IAW MM 32-42-04-4 AND TESTED IAW MM 32-42-00-5, ALL TEST PASSED, NO ACTIVE MAINT MESSAGES. INTERROGATED MAT AND FOUND NO FAULTS IN PRESENT FAULTS, EXISTING FAULTS, AND FAULT HISTORY PERTAINING TO CHAPTER 32. REACTIVATED NR 7 MLG BRAKE. PERFORMED ANTI-SKID & AUTOBRAKE CONTROL SYSTEM, AUTOBRAKE APPLICATION GROUND TEST IAW AMM 32-42-00-5. TEST PASSED.

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