Service difficulty report · Turbine Blades · Casa C212200

Difficulty date
September 8, 2008
Submitted
December 22, 2008
Operation
Air carrier
Aircraft
N962BW
Make and model
Casa C212200
Aircraft serial
290
Engine
Garrtt TPE33110R
Part
Turbine Blades
Part number
31081251
Part serial
05SDYWT
Condition
Failed
Location
Engine
Part time
1,871 hours
Component
Turbine Wheel
Component part number
31081642
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

HAVE RECEIVED AN ENGINE THAT HAS SUFFERED AN INFLIGHT FAILURE AND SHUTDOWN. UPON INITIAL INVESTIGATION WE HAVE IDENTIFIED THAT A 1ST STAGE TURBINE WHEEL BLADE APPEARS TO HAVE FAILED IN THE ROOT AREA. THIS BLADE HAS CAUSED SUBSTANTIAL DAMAGE TO THE REMAINDER OF THE 1ST STAGE WHEEL AND ALL COMPONENTS DOWNSTREAT OF IT. THE ENGINE WAS LAST IN OUT SHOP ON 15TH MAY, 2006 WHEN A CAM INSP WAS PERFORMED AT 8894.3 TSN, 10114 CSN. THE SUSPECT 1ST STAGE WHEEL WAS REPLACED AT THAT TIME WITH AN OVERHAULED ITEM FROM MFG WHICH HAD NEW BLADES. (K)