Service difficulty report · Seal · Boeing 7878

Difficulty date
November 2, 2025
Submitted
November 12, 2025
Operation
Air carrier
Aircraft
N966AM
Make and model
Boeing 7878
Aircraft serial
35311
Aircraft time
46,281 hours, 5,995 cycles
Engine
Ge GENX1B70P2
Engine time
35,094 hours, 4,103 cycles
Part
Seal
Condition
Leaking
Location
Nr Gearbox
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

DURING WALKAROUND FOUND SIGNS OF OIL LEAKS COMING FROM HEATER DRAIN VFSG RIGHT PAD ON ENGINE 2. SIX DROPS PER MINUTE. RIGHT VFSG ACCESORY GEARBOX SEAL ENG # 2 WAS REPLACED IAW AMM DMC-787-A-G72-64 -01-00A-520A-A /

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