Service difficulty report · O-Ring · Boeing 737990ER

Difficulty date
July 23, 2021
Submitted
July 26, 2021
Operation
Air carrier
Aircraft
N474AS
Make and model
Boeing 737990ER
Aircraft serial
40715
Aircraft time
22,787 hours, 7,246 cycles
Engine
Cfmint CFM567B27E
Part
O-Ring
Part number
J221P138
Condition
Loose
Location
Nr 2 Eng Oil Cap
Stage of operation
IN
How discovered
9
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

#2 ENG OIL CAP "O" RING LOOSE. GROUNDED - YES. REPLACED THE OIL CAP "O" RING REF B737-900 MM 79-11-01-300-801 F00.