Service difficulty report · Fuse · Boeing 777222

Difficulty date
September 10, 2025
Submitted
September 11, 2025
Operation
Air carrier
Aircraft
N796UA
Make and model
Boeing 777222
Aircraft serial
26931
Aircraft time
111,581 hours, 14,670 cycles
Part
Fuse
Part number
278983600U
Condition
Leaking
Location
Zone 700
Stage of operation
CR
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

HYD QTY LOW C EICAS ADVISORY CENTER HYDRAULIC SYSTEM LOW RESERVOIR QUANTITY. QTY < .40 DB HYDRAULIC INTERFACE MODULE (HYDIM)(CL) FOUND HYDRAULIC LEAK ON RT MLG EXTENSION AND RETRACTION LINE HYD FUSE. FUSE VISUALLY DISASSEMBLED. IT WAS REPLACED MLG HYDRAULIC FUSE IAW AMM TASK 32-32-19/401. OPERATIONAL CHECK OK. NO REMARKS. SYSTEM WORKING PROPERLY.