Service difficulty report · Outlet · Boeing 777222

Difficulty date
September 4, 2011
Submitted
September 29, 2011
Operation
Air carrier
Aircraft
N220UA
Make and model
Boeing 777222
Aircraft serial
30223
Aircraft time
43,030 hours, 5,335 cycles
Engine
Pwa PW40903
Part
Outlet
Condition
Obstructed
Location
Mix Manifold
Stage of operation
CL
How discovered
O
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

VERBAL FROM TEST FLIGHT CREW, ZONE 'E' HAS LITTLE AIRFLOW. OCCURS WHEN DEMAND TO WARM UP ZONE 'E' THE HOT AIR ODOR COMES BACK (IN FLIGHT). FOUND DEBRIS IN MIX MANIFOLD OUTLETS, CLEANED SAME.