Service difficulty report · Btms · Boeing 777222

Difficulty date
March 9, 2012
Submitted
March 30, 2012
Operation
Air carrier
Aircraft
N781UA
Make and model
Boeing 777222
Aircraft serial
26945
Aircraft time
63,957 hours, 11,274 cycles
Engine
Pwa PW4077
Part
Btms
Part number
S294W60111
Condition
Failed
Location
Brake System
Stage of operation
IN
How discovered
O
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

BRAKE TEMP SYS BRAKE TEMPERATURE MONITOR SYSTEM HAS FAILED. CAUSING PARTIAL OR TOTAL LOSS OF BRAKE TEMPERATURE INDICATION OR LOSS OF BUS INPUTS FROM THE BRAKE TEMPERATURE MONITOR UNIT. REPLACED BTMU, OPS CHKS NORMAL.