Service difficulty report · Blade · Saab 340B

Difficulty date
February 7, 2007
Submitted
May 1, 2007
Operation
General aviation
Make and model
Saab 340B
Aircraft time
17,436 hours
Engine
Ge CT79B
Propeller
Rotol R3904123F27
Part
Blade
Condition
Separated
Location
Turbine Disk
Part time
12,458 hours
Stage of operation
CR
How discovered
O
Nature of condition
Y, J
Precautionary procedure
A

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

What was found

(CAN) AFTER REACHING CRUISING ALTITUDE OF 23000 FT THE LT ENGINE SURGED AND THE LOW OIL PRESSURE LIGHT ILLUMINATED. THE ENGINE WAS SHUTDOWN AND THE FLIGHT CONTINUED TO WHERE AN UNEVENTFULL LANDING WAS MADE. THE ENGINE STRIP SHOWED THAT THE COMPRESSOR STAGE ONE TURBINE DISK HAD LOST A BLADE. THE REMAINING BLADES HAD SUFFERED EXTENSIVE DAMAGE, AS TOO HAD THE STATOR ASSY. THE ENGINE AND COMPONENTS HAVE BEEN RETURNED TO GE (ENGINE OEM) FOR INVESTIGATION. (TC NR 20070209021)

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