Service difficulty report · Carbon Seal · Boeing 767375

Difficulty date
October 25, 2020
Submitted
November 13, 2020
Operation
Air carrier
Aircraft
N1709A
Make and model
Boeing 767375
Aircraft serial
24086
Aircraft time
95,037 hours, 22,390 cycles
Engine
Ge CF680C2B6F
Part
Carbon Seal
Part number
1347M32G05
Condition
Leaking
Location
Engine Oil
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

NR 1 ENGINE OIL LINES CAPPED FOR 10 FLT CYCLES (HIGH OIL CONSUMPTION), REF NON-MEL 136533. UNCAPPED NR 1 ENGINE OIL LINES, PER 71-71-00 RECONNECTED HMV AND FUEL PUMP DRAIN LINES, PER 71-71-00. FOUND IDG WITH 2 OZ OIL AND STARTER EDP WITH 1/8TH OZ OIL. NMEL REMAINS OPEN. DRAIN LINES RECAPPED, PER 71-71-00 AND ECM 2020P-464. TRACKED UNDER NMEL 136533 ITEM NR 8. NMEL 136533 REMAINS OPEN. REMOVED AND REPLACED NR 1 ENGINE CARBON SEAL AND HYD PUMP, IAW MM72-64-04 AND 29-11-05. PERFORMED OPERATIONS CHECK AND ENGINE RUN, ALL OPERATIONS NORMAL, IAW 71-00-00. THIS CLEARS DMI 136533. (OFF PART: P/N 1347MG08 AND SN 1347MG09).