Service difficulty report · Manifold · Boeing 747446

Difficulty date
August 23, 2025
Submitted
August 25, 2025
Operation
Air carrier
Aircraft
N344KD
Make and model
Boeing 747446
Aircraft serial
26344
Aircraft time
96,581 hours, 18,378 cycles
Engine
Ge CF680C2B1F
Part
Manifold
Part number
1978M64G01
Condition
Cracked
Location
Scav Pump
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
E

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

What was found

ENGINE #3 OIL QUANTITY WENT TO ZERO IN CRUISE FOLLOWED QRH FOR ENGINE 3 OIL PRESSURE. ENGINE SHUT DOWN PER QRH. REMOVED AND REPLACED LUBE SCAVENGE PUMP DISCHARGE MANIFOLD PER AMM 79-32-01. LEAK CHECKS GOOD.