Service difficulty report · Turbine Blades · Beech 300BEECH

Difficulty date
December 18, 2008
Submitted
April 7, 2009
Operation
General aviation
Aircraft
N311GM
Make and model
Beech 300BEECH
Aircraft serial
FL138
Engine
Pwa PT6A60A
Part
Turbine Blades
Part number
3029312
Part serial
17B905
Condition
Damaged
Location
First Stage
Part time
4,802 hours
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

STIFF PROP NOTICED ON SHUTDOWN. FOUND AT DISASSEMBLY: 1ST STG PT BLADES-7EA BLADES WITH PT SHROUD RUB. 1 EA COMPLETE BALDE COMING OUT OF PT DISK. 1ST STG PT STATOR, HEAVY BLADE RUB IN BLADE PATH AREA. 1ST STG PT DISK (PN 17B905 - MARKED K DIA. 6.1762. ACTUAL MEASUREMENT 6.215 AND 6.187, 90 DEGREES FROM 6.215. (K)