SDR 96ZZZX2899

Service difficulty report · Nozzle Shield

Difficulty date
May 13, 1996
Submitted
March 26, 2000
Operation
General aviation
Engine
Allsn 250C30
Part
Nozzle Shield
Part number
6892828
Condition
Cracked
Location
1st Stage Turb
Component
23031925
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 REPAIR OF THE TURBINE, NOTED THE DEFLECTOR ON THE FIRST STAGE NOZZLE SHIELD WAS BURNED. CLOSER EXAMINATION REVEALED 2 CRACKS IN THE DOME DETAIL. THE DOME WAS CHECKED FOR PROPER MATERIAL PER DEB A-72-3208 AND WAS FOUND TO CONFORM. SUSPECT THE CAUSE COULD BE A STREAKING FUEL NOZZLE.