Service difficulty report · Controller · Boeing 777222

Difficulty date
August 4, 2010
Submitted
August 6, 2010
Operation
Air carrier
Aircraft
N229UA
Make and model
Boeing 777222
Aircraft serial
30557
Aircraft time
35,664 hours, 4,354 cycles
Engine
Pwa PW4090
Part
Controller
Part number
339910031
Part serial
54
Condition
Faulty
Location
Left
Stage of operation
NR
How discovered
O
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

BLEED FAMV L STATUS MSG. LOCKED VALVE IN OPEN POSITION. FOUND MAINT MSG 36-10521, ACCOMPLISHED FIM 36-11 TASK ON THE STEPS 5 AND 6 CONFIRMED 22VDC AT CONNECTOR DM36117B PINS 2 AND 3. NEED TO REPLACE HIGH PRESSURE FAN AIR CONTROLLER. REPLACED HPFAC. OPS CK OK.