Service difficulty report · Engine · Boeing 777224

Difficulty date
May 11, 2025
Submitted
May 13, 2025
Operation
Air carrier
Aircraft
N79011
Make and model
Boeing 777224
Aircraft serial
29859
Aircraft time
116,413 hours, 11,928 cycles
Engine
Ge GE9090B
Part
Engine
Condition
Oil Consumption
Location
Nr 1
Stage of operation
IN
How discovered
O
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

E1 ESN 900511 HAS EXPERIENCED AN INCREASE IN OIL CONSUMPTION. PL EASE ACCOMPLISH A SNIFF CHECK OF THE OIL FOR FUEL SMELL IN THE O IL SYSTEM, REF. AMM 12-13-01-200-003-002. ACCOMPLISH FIM 71-05 T ASK 805 STEPS D.(1) TO D.(3).ALSO PLEASE PERFORM TEST NO. 6 - PA RT-POWER LEAK CHECK WITH ALL THE DRAIN LINES BAGGED TO SEE IF AN Y OF THE CARBON SEALS ON THE AGB ARE LEAKING. STAY AT 70% N1 FOR 10 MINUTES BEFORE REDUCING BACK DOWN TO IDLE. IF THE GEARBOX SE ALS ARE INDEED LEAKING, CAP THE ASSOCIATED DRAIN LINES AND DIP F OR 25 CYCLES PER AMM 71-71-00-700-802-G00. PLEASE REPORT ANY FI NDINGS OR ACTIONS WITHIN THIS LOG PAGE. ESCPP@UNITED.COM, 847-70 0-8324 OPT CARRIED BY ELB ACP'D SNIFF CHECK OF OIL PRE AND POST POWER RUNS. NO FUEL SMELL NOTED. ACP'D FIM 71-05 TASK 805 STEPS D(1)-(3). NO DEFECTED NOTED. BAGGED ALL DRAIN LINES FOR AGB FOR #1 ENG. PERFORMED PART POWER LEAK CHECK AT 70% N1 FOR 10 MIN. INSPECTED ALL BAGS. NO LEAKS NOTED. ALL BAGS DRY REF AMM 71-71-00-70-802-G00 & 71-00-00-700-806-G00. OIL QUANTITY STAYED THE SAME PRE AND POST POWER RUNS. RETURNED AC TO NORMAL CONFIG. ADD EMPLOYEE ADD EMP:U121006,282178