Service difficulty report · Compressor · Aerosp AS355F2

Difficulty date
March 1, 2007
Submitted
March 5, 2007
Operation
Air carrier
Aircraft
N942MS
Make and model
Aerosp AS355F2
Aircraft serial
5498
Aircraft time
6,352 hours, 28,175 cycles
Engine
Allsn 250C20F
Engine time
10,278 hours, 22,809 cycles
Part
Compressor
Part number
6890550
Part serial
CAC30031F
Condition
Seized
Location
Engine
Part time
13,675 hours, 2,570 cycles
Component
Turbine Assy · Allsn
Component part number
23038241
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

PILOT WENT TO START NR 1 ENGINE. ENGINE WOULD NOT TURN. FOUND ENGINE SEIZED. REMOVED AND REPLACED ENGINE ASSEMBLY. BROUGHT ENGINE TO ARC, DISASSEMBLED ENGINE AND FOUND 2 (6TH STAGE) COMPRESSOR BLADES BROKEN AND SEIZED THE COMPRESSOR, ALSO REMOVED THE TURBINE ASSEMBLY DUE TO FOD. WILL REPLACE THE COMPRESSOR ASSEMBLY AND TURBINE ASSEMBLY.

More about the Aerosp AS 355F2