SDR 2023F00219

Service difficulty report · Drive Shaft · Boeing 767323

Difficulty date
July 7, 2023
Submitted
July 7, 2023
Operation
General aviation
Aircraft
N379AZ
Make and model
Boeing 767323
Aircraft serial
25200
Engine
Ge CF680C2B6
Engine time
113,930 hours, 19,426 cycles
Part
Drive Shaft
Part number
9372M84P02
Condition
Grooved
Location
Engine
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

ENGINE WAS REMOVED DUE TO END OF LEASE AND TRANSPORTED TO ENGINE SERVICE FACILITY FOR OVERHAUL. ACCORDING TO THE ENGINE TEARDOWN REPORT A LINE INSPECTOR FOUND A BOLT BETWEEN THE RADIAL DRIVE SHAFT (RDS) AND THE FAN FRAME. THE BOLT HAS CAUSED MAJOR DAMAGE TO THE RDS DURING ENGINE OPERATION. THE DAMAGE IS A GROOVE, APPROX. 4,25 MM DEEP. THE INVESTIGATION IS ON-GOING, BUT IT IS APPEARS TO BE A DOD. PLEASE CONTACT JHUTTU@GATELESIS OR ILOUKKOLA@GATELESIS.COM FOR FURTHER INFORMATION.