Service difficulty report · Turbine Blades · Bombdr BD7001A10

Difficulty date
September 28, 2010
Submitted
September 30, 2010
Operation
General aviation
Aircraft
N816DC
Make and model
Bombdr BD7001A10
Aircraft serial
9025
Aircraft time
3,742 hours, 1,847 cycles
Engine
Rroyce BR700710A220
Engine time
3,742 hours, 1,847 cycles
Part
Turbine Blades
Part serial
UNKNOWN
Condition
Cracked
Location
Zone 400
Part time
3,742 hours, 1,847 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

DURING A ROUTINE BORESCOPE INSPECTION, FOUND (3) STAGE 1 HPT BLADES WITH MISSING MATERIAL ON THE BLADE PLATFORM. ONE OF THE BLADES WITH MISSING PLATFORM MATERIAL ALSO HAS A CRACK ON THE T/E OF THE BLADE. THE DETERMINATION WAS MADE TO REMOVE THE ENGINE AND SEND IT TO THE SHOP FOR REPAIR.