Service difficulty report · Engine · Boeing 737990ER

Difficulty date
September 2, 2023
Submitted
September 5, 2023
Operation
Air carrier
Aircraft
N433AS
Make and model
Boeing 737990ER
Aircraft serial
41704
Aircraft time
36,563 hours, 11,561 cycles
Engine time
34,750 hours, 10,975 cycles
Part
Engine
Part number
CFM567BEQEC2
Part serial
962672
Condition
Making Metal
Location
#1 Engine
Part time
34,750 hours, 10,975 cycles
Stage of operation
IN
How discovered
B
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

WHILE PERFORMING T/C SBCFM56-7B-72-0986-1 NOTED ABOUT 36 VSV BUSHINGS ON THE STAGE 3 HAVE METAL TO METAL CONTACT PER AMM 72-32-00-200-801-F00 THIS IN NOT SERVICABLE. GROUNDED - YES. ENGINE ESN # 962672 REMOVED REF. T/C # 78471000. DEFECT TRANSFERRED TO SHOP W/O # 1968040.