Service difficulty report · Seal · Boeing 737990ER

Difficulty date
July 22, 2023
Submitted
August 7, 2023
Operation
Air carrier
Aircraft
N435AS
Make and model
Boeing 737990ER
Aircraft serial
43292
Aircraft time
36,470 hours, 11,491 cycles
Part
Seal
Part number
3401553040
Condition
Leaking
Location
#2 Engine
Stage of operation
IN
How discovered
O
Nature of condition
K
Precautionary procedure
K

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

What was found

#2 ENGINE OIL TREND DATA CONTINUES TO SHOW OIL CONSUMPTION TO GREATER THAN EXPECTED. (#PRI2/ETOPS)ENGINE POWER RUN REQUIRED. GROUNDED - YES. (RESOLVED ON W/O: 1961801 TASKCARD: N/R-00003 ) ACCOMPLISHED STEPS 1 THROUGH 5 OF THIS TSR. ACCOMPLISHED PART POWER LEAK CHECK WITH OIL DRAINS BAGGED, FOUND OIL IN N2 DRIVE PAD BAG. REMOVED N2 DRIVE PAD SEALOL SEAL SEAL REF AMM 72-60--00-000-802-F00. W MCCOMAS 41497 08/04/2023. REPLACED N2 DRIVE PAD SEALOL SEAL IAW AMM 72-60-00 NO LEAKS NOTED. J MOTTER 53119 08/04/2023 INSTALLED N2 DRIVE PAD COVER IAW AMM 72-63-01, NO LEAKS NOTED. J MOTTER 53119 08/04/2023 ASA INSP 32. THIS CLEARS TSR 714678 SEAMC MARK NOTIFIED.