Service difficulty report · Line · Boeing 777222

Difficulty date
July 26, 2010
Submitted
July 28, 2010
Operation
Air carrier
Aircraft
N222UA
Make and model
Boeing 777222
Aircraft serial
30553
Aircraft time
38,009 hours, 4,631 cycles
Engine
Pwa PW4090
Part
Line
Condition
Leaking
Location
Hyd System
Stage of operation
NR
How discovered
O
Nature of condition
K, J
Precautionary procedure
O

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

What was found

'C' HYD SYS LEAK. LEAK IN LINES ON C-ADP PUMPS. IDENTIFIED LINES ALL ON AOG. 1 STOCKED (Y6258)1 N-S (S2904). INSTALLED BOTH 3'' HYD LINES ON CTR HYD NR 1 ADP ACCOUNT OF HYD LEAK. BOTH LINES TORQUED. NEED TO SVC CTR SYST. HYD FLUID AND THEN LEAK CHECK LINES. SERVICED CTR SYS AND LEAK CHECKED LINES OK.