Service difficulty report · Seal · Boeing 777232

Difficulty date
September 14, 2017
Submitted
September 18, 2017
Operation
Air carrier
Aircraft
N703DN
Make and model
Boeing 777232
Aircraft serial
32222
Aircraft time
43,491 hours, 3,914 cycles
Engine
Ge GE90110B1
Part
Seal
Condition
Leaking
Location
Gearbox
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

RETURNED TO DEPARTURE DUE TO THE LEFT ENGINE OIL QUANTITY DECREASING. REPLACED THE IDG GEARBOX SEAL.