Service difficulty report · Module · Boeing 777222

Difficulty date
September 11, 2011
Submitted
September 16, 2011
Operation
Air carrier
Aircraft
N229UA
Make and model
Boeing 777222
Aircraft serial
30557
Aircraft time
40,717 hours, 4,984 cycles
Engine
Pwa PW40903
Part
Module
Part number
285W0017102
Part serial
4992
Condition
Faulty
Location
Hydraulic Sys
Stage of operation
NR
How discovered
O
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

FLIGHT CONTROL CAUTION MESSAGE ON UPPER EICAS, CLEARS WITH PFC SELF TEST, REAPPEARS WITH THIRD HYS SYSTEM. TS INSTALLED NEW HYDIM CL AND CR REF MM, NO HELP. REPLACED HYDIM CR MODULE, OPS CK GOOD.