Service difficulty report · Lubrication Unit · Boeing 737890

Difficulty date
June 30, 2021
Submitted
July 12, 2021
Operation
Air carrier
Aircraft
N538AS
Make and model
Boeing 737890
Aircraft serial
41188
Aircraft time
34,377 hours, 10,009 cycles
Engine
Cfmint CFM567B27
Part
Lubrication Unit
Part number
41F1005
Part serial
YT133796
Condition
Leaking
Location
#1 Engine
Part time
34,457 hours, 10,041 cycles
Stage of operation
NR
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

FOLLOWUP TO REPORTS OF #1 ENGINE AFT SUMP LEAKING EXCESSIVELY. GROUNDED - YES. REPLACED THE #1 ENG LUBE UNIT, LEAK AND OPS CHECK GOOD REF B737-800 AMM 79-21-01/401.