Service difficulty report · Seal · Boeing 777FZB

Difficulty date
April 9, 2024
Submitted
April 11, 2024
Operation
Air carrier
Aircraft
N777SA
Make and model
Boeing 777FZB
Aircraft serial
37989
Aircraft time
59,622 hours, 6,776 cycles
Part
Seal
Part number
1770M64G04
Part serial
NSN
Condition
Leaking
Location
Accessory G/B
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

DUE TO #1 ENG HIGH OIL CONSUMPTION, REMOVED #1 ENG BACKUP GENERATOR IAW AMM 24-25-01(<P>REMOVED AND REPLACED #1 ENG ACCESSORY GEARBOX SEAL OIL FACE SEAL AND MATING RING AT BACKUP GEN PER B777 AMM 72-64-01-420-801-H01. RE-INSTALLED #1 ENG BACKUP GENERATOR PER B777 AMM 24-25-01-000-804-001. LEAK AND OPS CHECK REQUIRED. SEE ITEM M7.</P> / <P>LOG PAGE 1702288 - ITEM M7 CONT - PERFORMED HIGH POWER ENG RUNS PER AMM 71-00-00. OPS CHECK & LEAK CHECK GOOD PER AMM 24-25-01. P/N OFF - 2205M8301. NO S/N.</P>)

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