Service difficulty report · Hub

Difficulty date
September 3, 2025
Submitted
September 5, 2025
Operation
General aviation
Filed by
QEMY466L
GE Aircraft Engine Services Ltd
Engine
Cfmint CFM565B6
Engine time
33,878 hours, 19,876 cycles
Part
Hub
Part number
3380779140
Part serial
DH317083
Condition
Cracked
Location
Engine
Part time
33,878 hours
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

DURING INCOMING INSPECTION AT GE WALES, DEFECTS ON THE FAN FRAME HAVE BEEN NOTED. INNER HUB OF FAN FRAME FOUND CRACKED ON SURFACE L FLANGE IN 2 OFF LOCATIONS. IN BOTH LOCATIONS THE CRACK HAS FULL PENETRATION THROUGH THE FLANGE. DR #02238550 WAS REJECTED BY THE OEM. DUE TO THE REPORTED LOCATION AND DIMENSIONS OF THE FINDINGS, THE MECHANICAL BEHAVIOR OF THE PART IS IMPACTED BEYOND THE ACCEPTABLE LIMIT CFM CAN SUBSTANTIATE THROUGH THE DEVIATION PROCESS. TO BE REPORTED I.A.W AMC 20-8A 9.3 (A) SERIOUS STRUCTURAL DAMAGE (FOR EXAMPLE, CRACKS, PERMANENT DEFORMATION, DELAMINATION, DEBONDING, BURNING, EXCESSIVE WEAR, OR CORROSION) FOUND DURING MAINTENANCE OF THE AIRCRAFT OR COMPONENT.