Service difficulty report · Bypass Valve · Boeing 767424ER

Difficulty date
November 6, 2024
Submitted
November 8, 2024
Operation
Air carrier
Aircraft
N76064
Make and model
Boeing 767424ER
Aircraft serial
29459
Aircraft time
88,210 hours, 14,260 cycles
Part
Bypass Valve
Part number
8252141
Part serial
200110043
Condition
Faulty
Location
Lt A/C Pack
Part time
85,923 hours, 13,741 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

BLACK FLUID LEAKING ROWS 30-37 40-45 TS AND FOUND DIRTY WATER LEAKING FROM AIR DUCTS ABOVE OVERHEAD BINS IN CABIN, SUSPECT CONDENSER LOW LIMIT VALVE FAULTY DO TO IT BEING ON MEL, VALVE AND GASKET ORDERED TO TERM WINDOW. REMOVED LH LOW LIMIT VALVE UPON REMOVAL FOUND ORINGS MISSING. REPLACED LH LOW LIMIT VALVE. REF AMM 21-51-11. OPS PASSED. RAN LH AND RH PACKS FOR 5 HOURS NO DEFETS NOTED. NO WATER NOTICED IN CABIN.