Service difficulty report · Turbine Disc · Dhav DHC8102

Difficulty date
April 8, 1996
Submitted
March 26, 2000
Operation
General aviation
Make and model
Dhav DHC8102
Engine
Pwa PW120A
Part
Turbine Disc
Part number
120111
Condition
Fractured
Location
Firtree
Part time
3,683 hours
Component
Pwa · PW120A
Stage of operation
CL
Nature of condition
X, M
Precautionary procedure
A

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

What was found

(CAN)DURING CLIMB, LOUD BANG FOLLOWED BY HIGH ITT ABOVE 950 DEGREES AND ENGINE FLAME OUT MOLTEN DEBRIS IN THE EXHAUST WITH ALL THREE #6/7 OIL TUBES FRACTURED ENGINE TEARDOWN HAS REVEALED FRACTURE OF TWO LP TURBINE DISC FIRTREE WITH RELEASE OF THREE LPT BLADES. THE DISC/BLADE ASSEMBLY TO BE RETURNED TO P&WC FOR INVESTIGATION.