Service difficulty report · Seal · Boeing 777300ER

Difficulty date
March 21, 2026
Submitted
April 6, 2026
Operation
Air carrier
Aircraft
N2846U
Make and model
Boeing 777300ER
Aircraft serial
64990
Aircraft time
35,509 hours, 3,880 cycles
Part
Seal
Condition
Leaking
Location
Idg
Stage of operation
NR
How discovered
O
Nature of condition
K, B
Precautionary procedure
O

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

What was found

PLACED NR 2 ENGINE ON DIP FOR HOC. CAPPED THE EDP, MFP, BUG, IDG & HMU DRAIN LINES AND DIP FOR 25 CYCLES PER AMM 71-71-00-700-801-H01. ENG 2 DUE TO HIGH OIL CONSUMPTION CAPPED THE EDP, MFP, BUG, IDG & HMU DRAIN LINES IAW AMM 71-71-00-700-801-H01 C/W REPAIR WITHIN 25 CYCLES AMM 71-71-00.REPETITIVE LABOR HOURS: 0003 GROUND TIME: 0006TERMINATING LABOR HOURS: 0036 GROUND TIME: 0040 T/A : WITHIN 25 F/C.RD/U442594 CONFIRMED WITH ESCPP, PER AMM TASK 71-71-00-700-801-H01 NEED TO REPLACE ALL AGB CARBON SEALS FOR COMPONENTS DRAIN LINES THAT WERE CAPPED. REF EGC 8289670, THE DRAIN LINES WERE CAPPED FOR THE EDP, MFP, BUG, IDG, AND HMU. PARTS REQUIRED IN ADDITION TO PARTS REQUIRED 1 EA J1438P145; 1 EA J1438P129; 1 EA 1770M64G04; 1 EA 1769M53P01; 1 EA J1438P136; 1 EA J1438P122; 1 EA 2670M21P02; 1 EA 2205M86P02; 1 EA J1438P153; 1 EA J1438P148 REMOVED AND REPLACED E2 IDG SEAL OL FACE SEAL AND MATING RING REF AMM 72-64-01/401. STILL REQUIRES INSTALLATION TEST 21 - HIGH POWER TOMCQC REV PERFORMED

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