Service difficulty report · Seal · Boeing 737890

Difficulty date
May 18, 2019
Submitted
May 20, 2019
Operation
Air carrier
Aircraft
N513AS
Make and model
Boeing 737890
Aircraft serial
35192
Aircraft time
40,682 hours, 12,124 cycles
Engine
Cfmint CFM567B27
Part
Seal
Part number
3051157090
Condition
Leaking
Location
Nr 1 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

#1 ENGINE OIL CONSUMPTION TREND DATA SHOWS CONSUMPTION RATES TO BE GREATER THAN EXPECTED. GROUNDED - YES. UPON INSPECTION AFTER ENGINE RUN LEAK CHECK FOUND OIL LEAKING ON #1 ENGINE FROM IDG/AGB DRAIN. FOUND TO BE OUT OF LIMITS (MORE THAN ONE DROP IN 3 MINUTES) REF AMM 71/71/00 FIGURE 605 SHEET 2. AGB/IDG SEAL ASSY REQUIRES REPLACEMENT. REMOVED AND REPLACED #1 ENG AGB/IDG SEAL REF AMM 72-60-00. LEAK OK GOOD #1 ENG IDG.