Service difficulty report · Spacer · Boeing 737990ER

Difficulty date
March 22, 2022
Submitted
March 24, 2022
Operation
Air carrier
Aircraft
N464AS
Make and model
Boeing 737990ER
Aircraft serial
40714
Aircraft time
29,811 hours, 9,309 cycles
Engine
Ge CFM567B24
Part
Spacer
Part number
3400012620
Condition
Worn
Location
#2 Engine
Stage of operation
NR
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

#2 ENGINE TREND DATA SHOWS A RISE IN LOW PRESSURE ROTOR VIBRATION LEVELS. GROUNDED - YES. REPLACED 4 SPACERS AND COMPLIED WITH TASKCARD 78472010.