Service difficulty report · Shroud

Difficulty date
December 28, 1999
Submitted
March 26, 2000
Operation
General aviation
Engine
Ge CF680C
Part
Shroud
Part number
9392M86G08
Condition
Disbonded
Location
Turbine
Stage of operation
IN
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

3 EACH CF6-80C2 STG 2 HPT SHROUDS WITH 40 CYCLES AND 2,000 HOURS WERE RECEIVED AND EXHIBITED PARTIAL DISBONDMENT OF WEARCOAT MATERIAL FROM SUBSTRATE. PW ENGINEERING STATED THIS IS NOT A FLIGHT SAFETY ISSUE. ROOT CAUSE IS STILL UNDER INVESTIGATION.