Service difficulty report · Valve · Boeing 7879

Difficulty date
March 20, 2026
Submitted
March 23, 2026
Operation
Air carrier
Aircraft
N61103
Make and model
Boeing 7879
Aircraft serial
68649
Aircraft time
12 hours, 6 cycles
Part
Valve
Part number
77000575
Part serial
18077
Condition
Leaking
Location
Zone 100
Part time
12 hours, 6 cycles
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

FWD GALLEY FWD WATER FILTER ASSY LEAKINGR&R FWD GALLEY WATER FILTER ASSY. REF AMM 38-11-41, PERF LEAK TEST REF AMM 25-31-00 NO LEAKS NOTED TRHU GALLEY FILTER ASSY. AT THIS TIME INSPECTED GALLEY GRAY WATER INTERFACE VALVE, VALVE CYCLES REPEATEDLY EVEN WITHOUT WATER. SUSPECT VALVE WATER SENSOR IS FAULTY. FWD GALLEY WATER LEAK LEFT WATER COVERING COUNTER AND FLOOR. ECRA 2011-01000 REQUIRED FOR CLEAN-UP PROCEDURES. DUE TO FWD GALLEY WATER FILTER ASSY LEAKING, WATER DRIPPED FROM FLOOR PANEL INTO E&E AT TWO LOCATIONS ABOVE THE RT FLOORBOARD NEAR BS 250, WL 200 . PER ECRA 2011-01000, 2. COMPLETED UP TO STEP 6. REPLACED FWD GALLEY GRAY WATER INTERFACE VALVE IAW AMM 36-31-21-04A-720A-A. CHKD GOOD.

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