Service difficulty report · Modulating Valve · Boeing 777222

Difficulty date
February 10, 2013
Submitted
February 28, 2013
Operation
Air carrier
Aircraft
N213UA
Make and model
Boeing 777222
Aircraft serial
30219
Aircraft time
45,495 hours, 9,826 cycles
Engine
Pwa PW4077
Part
Modulating Valve
Part number
32907449
Part serial
54
Condition
Failed
Location
Lt Engine
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

LEFT ENGINE BLEED FAN AIR MODULATING VALVE (FAMV) FAILED OPEN OR CLOSED. REPLACED FAN AIR MODULATING VALVE (FAMV). TEST PASSED. ENGINE RUNUP FAMV OPERATION CHECKED NORMAL. NO STATUS MESSAGE.