Service difficulty report · Hydraulic Line · Boeing 777224

Difficulty date
April 28, 2026
Submitted
April 30, 2026
Operation
Air carrier
Aircraft
N76010
Make and model
Boeing 777224
Aircraft serial
29480
Aircraft time
125,700 hours, 13,020 cycles
Part
Hydraulic Line
Condition
Leaking
Location
Zone 100
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

HYD QTY LOW L EICAS ADVISORY LEFT HYDRAULIC SYSTEM RESERVOIR QUANTITY LOW. QTY & LT .40 DB HYDRAULIC INTERFACE MODULE (HYDIM)(L) OPEN #1 ENG, FOUND HYD SUPPLY LINE LEAKING FROM ABOVE PUMP. FURTHER INSP FOUND SUPPLY LINE RUBBING AGAINST BRACKET WEARING A HOLE THRU BRAID. REMOVED HYD SUPPLY LINE, HARDWARE LEFT IN THE AREA INSTALLED HYDRAULIC LINE AND CLAMPS NEED TO TORQUE AND LEAK CHECK REF. MM29-11-05 TORQUED #1 ENG HYD SUPPLY LINE REF 29-11-05. ACP OPS AND LEAK CHECK NO DEFECTS NOTED. SERVICED HYD TO FULL RESTORED A/C FOR SERVICE.