SDR 95ZZZX5838

Service difficulty report · Blade · Doug DC3C

Difficulty date
August 21, 1995
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N142Z
Make and model
Doug DC3C
Aircraft serial
20494
Engine
Pwa PT6A67R
Part
Blade
Part number
310940101
Condition
Cracked
Location
Turbine
Part time
1,534 hours
Stage of operation
IN
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

WHILE PERFORMING AN ENGINE HOT SECTION INSPECTION, THE COMPRESSOR TURBINE WAS FOUND TO HAVE ALL 52 BLADE TIP TO SEGMENT CLEARANCES WORN BEYOND SERVICEABLE LIMITS. ONE BLADE WAS ALSO FOUND CRACKED 50 PERCENT THROUGH CHORD-WISE. SENT TURBINE WHEEL ASSY TO P & WC FOR RE-BLADING AND BALANCING. PERFORMED THE REQUIRED HOT SECTION REPAIRS.

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