Service difficulty report · Turbine Blade · Dhav DHC3

Difficulty date
May 27, 1997
Submitted
March 26, 2000
Operation
General aviation
Make and model
Dhav DHC3
Engine
Pwa PT6A135
Part
Turbine Blade
Part number
312001101
Condition
Broken
Location
Base Of Blade
Part time
3,446 hours
Stage of operation
CR
Nature of condition
Y
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) INFLIGHT ENGINE FAILURE, EMERGENCY LANDING ON SMALL LAKE. POST FLIGHT INSPECTION FOUND COMPRESSOR TURBINE WHEEL BLADE FRACTURED, DAMAGING ADJACENT BLADES. THE FAILED BLADE WAS VERIFIED AND IT SHOWED TO HAVE AN OIL CRACK OF ABOUT 3/16", PROGRESSING FROM THE LEADING EDGE OF THE BLADE TOWARDS THE CENTRE (OF THE CHORD) AT ABOUT 1/8" FROM THE BASE.