Service difficulty report · Circuit Board · Boeing 767322

Difficulty date
April 8, 2011
Submitted
April 27, 2011
Operation
Air carrier
Aircraft
N647UA
Make and model
Boeing 767322
Aircraft serial
25284
Aircraft time
81,891 hours, 13,228 cycles
Engine
Pwa PW4060
Part
Circuit Board
Part number
285T007816
Part serial
26
Condition
Failed
Location
Exhaust Fan
Stage of operation
NR
How discovered
9
Nature of condition
J
Precautionary procedure
O

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

What was found

EICAS MESSAGE FWD EQ EXH FAN DISPLAYED. FWD EQ EXHAUST FAN PLACARD INOP IAW MEL2158F. COMPLIED WITH MEL REQUIREMENTS. CBS H21 AT P6 AND P22 AT P11 PULLED AND COLLARED. STANDBY MODE OPERATIONS VERIFIED WORKING SATISFACTORY. CHANGED ECS FAN CONTROL CAD PER FIM, NO HELP. ACCOMPLISHED FIM 21-58-00. PERFORMED FAN MONITOR REST. OPS CHK NOW OKAY. FAN OPERATED NORMALLY AND NO FURTHER MSG DISPLAYED.