SDR 95ZZZX4602

Service difficulty report · Blade · Cessna 550

Difficulty date
August 23, 1995
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N84EA
Make and model
Cessna 550
Aircraft serial
5500484
Engine
Pwa JT15D4
Part
Blade
Part number
3028601
Condition
Damaged
Location
Hp Turbine
Part time
1,869 hours
Component
3023411
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

DURING PHASE 25/HOT SECTION INSPECTION, ALL 71 HIGH TURBINE BLADES WERE FOUND NICKED, DENTED AND BROKEN BY IMPACT DAMAGE FROM DEFLECTOR - RING FAILURE. NUMEROUS BLADES WERE MISSING FORWARD ONE-QUARTER OF OUTBOARD LEADING EDGE. NO COCKPIT INDICATION WAS NOTED AS TIP CLEARANCES FOR REMAINDER OF BLADE WAS STILL IN TOLERANCE. ALL BLADES WERE REPLACED WITH NEW.

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