Service difficulty report · Controller · Boeing 777222

Difficulty date
May 27, 2013
Submitted
July 12, 2013
Operation
Air carrier
Aircraft
N220UA
Make and model
Boeing 777222
Aircraft serial
30223
Aircraft time
51,007 hours, 6,222 cycles
Engine
Pwa PW4090
Part
Controller
Part number
11511007
Part serial
6
Condition
Failed
Location
Rt Bleed
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

RT ENGINE BLEED FAN AIR MODULATING VALVE FAILED OPEN OR CLOSED, OR RT AIR SUPPLY AND CABIN PRESSURE CONTROLLER FAILED. REPLACED THE RT ASCPC IAW MM. REACTIVATED FAMV TEST NORMAL. NO FAULTS.