Service difficulty report · Seal · Boeing 737890

Difficulty date
July 5, 2022
Submitted
July 6, 2022
Operation
Air carrier
Aircraft
N596AS
Make and model
Boeing 737890
Aircraft serial
35688
Aircraft time
50,897 hours, 15,176 cycles
Engine
Cfmint CFM567B27
Part
Seal
Part number
S3225160
Condition
Leaking
Location
#2 Engine
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

ENG #2 OIL CONSUMPTION IS HIGHER THAN NORMAL. GROUNDED - YES. ACOMPLISHED TSR STEPS 1 THROUGH 5 NOTED & LARGE AMOUNT OF RESIDUAL OIL ON THE ENGINE FAN CASE AND COMPONENTS. THE IDG DRIVE PAD LEAKS STATICALLY AND DYNAMICALLY. REPLACED FLO SEAL FOR FLO #2 IDG PER B737-800 AMM 72-60-00. REMOVED/REINSTALLED THE #2 IDG PER MM 24-11-11. LK AND OPS CK GOOD. THOROUGHLY CLEANED FAN CASE AND COMPONENTS. NO OTHER LEAKS NOTED, IDG DRIVE PAD DRAIN LINE BAGGED FOR PART POWER LK CK. ACCOMP STEP 6 (PPRUN) FOUND STARTER PAD WET WITH OIL AFTER. REPLACED #2 ENGINE STARTER DRIVE PAD SEAL PER ASA T/C N8472002. NO LEAKS NOTED. TSR COMPLETED.