Service difficulty report · Nozzle · Bell 206L1

Difficulty date
March 8, 1998
Submitted
March 26, 2000
Operation
General aviation
Make and model
Bell 206L1
Engine
Allsn 250C28B
Part
Nozzle
Part number
23031899
Condition
Cracked
Location
Turbine 1st Stg
Component
23031899
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

(CAN) UPON REMOVAL OF TURBINE TO FACILITATE COMPRESSOR CHANGE, FIRST STAGE NOZZLE DOME WAS CRACKED IN CENTER AREA. FIRST STAGE NOZZLE WAS CRACKED ON THE OUTER RING AT 2 ADJACENT VANES. THE OVERHAUL SHOP FOUND A CRACK IN THE EXHAUST COLLECTOR/TURBINE SUPPORT AND BURNING CONSISTANT WITH AN UNEVEN FUEL NOZZLE SPRAY PATTERN. THE FUEL NOZZLE HAD BEEN REPLACED EARLIER DUE TO ERRATIC STARTS.

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