Service difficulty report · Module · Boeing 777222

Difficulty date
March 10, 2009
Submitted
March 13, 2009
Operation
Air carrier
Aircraft
N213UA
Make and model
Boeing 777222
Aircraft serial
30219
Aircraft time
30,982 hours, 6,879 cycles
Engine
Pwa PW4077
Part
Module
Part number
8102304
Part serial
4066
Condition
Failed
Location
Ac Pack
Stage of operation
CR
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

LEFT PACK FCV VLV INOP AT FL370, PRESSED AIR CON RESET TWICE DURING COURSE OF FLT, BUT CONTINUED TO FAIL. CHRONIC HISTORY. REPLACED FLOW SENSOR, NO HELP. REPLACED LEFT FLOW SENSOR MODULE, SYS TEST OK.