Service difficulty report · Shim · Boeing 737990ER

Difficulty date
July 17, 2017
Submitted
July 18, 2017
Operation
Air carrier
Aircraft
N448AS
Make and model
Boeing 737990ER
Aircraft serial
36356
Aircraft time
5,330 hours, 1,824 cycles
Engine
Cfmint CFM567B27E
Part
Shim
Part number
3402523070
Condition
Worn
Location
Nr 1 Eng Fan
Stage of operation
IN
How discovered
V
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

ALL 24 FAN BLADE SHIMS ON THE NR 1 ENGINE WERE WORN. ACFT GROUNDED. REMOVED AND REPLACED THE FAN BLADE SHIMS.