Service difficulty report · Unknown · Boeing 737990ER

Difficulty date
December 25, 2021
Submitted
December 27, 2021
Operation
Air carrier
Aircraft
N492AS
Make and model
Boeing 737990ER
Aircraft serial
44110
Aircraft time
22,424 hours, 7,127 cycles
Engine
Cfmint CFM567B27E
Part
Unknown
Part number
3400010360
Part serial
DM122300T
Condition
None
Location
#2 Engine
Part time
22,420 hours, 7,126 cycles
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

PERT/C 78472010 #1 ENG. FAN BLADE LUBE #2 FAN BLADE CU-NE-IN COATING IS MISSING BEYOND LIMITS ON CONCAVE SIDE. GROUNDED - YES. REMOVED & REPLACED #2 & #14 FAN BLADES REF T/C 78472010.