Service difficulty report · Carbon Seal · Boeing 777224

Difficulty date
October 15, 2017
Submitted
October 16, 2017
Operation
Air carrier
Aircraft
N78001
Make and model
Boeing 777224
Aircraft serial
27577
Aircraft time
94,219 hours, 9,498 cycles
Part
Carbon Seal
Condition
Leaking
Location
Nr 1 Bkup Gen
Stage of operation
DE
How discovered
O
Nature of condition
K, J
Precautionary procedure
O

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

What was found

NR 1 ENGINE LEAKING OIL. REMOVED AND REPLACED DAMAGED BACK-UP GENERATOR CARBON SEAL, MATING RING AND ASSOCIATED O-RINGS..HIGH POWER, LEAK CHECKED GOOD..OK TO CONTINUE IAW 72-64-01