Service difficulty report · Bushing · Boeing 767375

Difficulty date
October 2, 2020
Submitted
October 6, 2020
Operation
Air carrier
Aircraft
N649GT
Make and model
Boeing 767375
Aircraft serial
25864
Aircraft time
91,892 hours, 23,536 cycles
Engine
Ge CF680C2B6F
Part
Bushing
Part number
9207M68P15
Part serial
NSN
Condition
Failed
Location
Compressor
Stage of operation
IN
How discovered
9
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 EO 1972A763 ENGINE HIGH PRESSURE COMPRESSOR (HPC) STAGE 5 VSV'S LEVER ARMS INSPECTION, SEVERAL VSV'S WERE FOUND WITH EVIDENCE OF METAL TO METAL CONTACT WITH HIGH PRESSURE COMPRESSOR CASE. ACCOMPLISHED (CF6-80C2) HIGH PRESSURE COMPRESSURE (HPC) STAGE 5 VSV'S BUSHING AND LEVER ARM REPLACEMENT, IAW EO 1972A630 PAGE 1 OF 13 WITH REVISION DATE 27/MAR/20 BY MTUD ENGINE SHOP UNDER WO 20114.