Service difficulty report · Valve · Boeing 777222

Difficulty date
August 3, 2010
Submitted
August 6, 2010
Operation
Air carrier
Aircraft
N224UA
Make and model
Boeing 777222
Aircraft serial
30225
Aircraft time
34,875 hours, 4,279 cycles
Engine
Pwa PW4090
Part
Valve
Part number
32907449
Part serial
622
Condition
Faulty
Location
Rt Eng Bleed
Stage of operation
IN
How discovered
9
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

BLEED FAMV R RT ENGINE BLEED FAN AIR MODULATING VALVE (FAMV) FAILED OPEN OR CLOSED, OR RT AIR SUPPLY AND CABIN PRESSURE CONTROLLER FAILURE. STATUS MSG-3610532 LATCHED CL MODE MSG-3610532 LATCHED CL MODE MSG-3610340 LATCHED CL MODE MSG-3610340 ACTIVE CL MODE. DEACTIVATED FAMV OPEN. MFG AHM REPORTS MMSG 36-10532 FOR 'RVDT CIRCUIT IS OPEN OR SHORTED'. NEED TO REPLACE FAMV. REPLACED FAN AIR VALVE IAW MM. RAN ENG OPS CHECK GOOD.