SDR S9BA2015011500001

Service difficulty report · Engine · Saab 340B

Difficulty date: January 10, 2015
Submitted: January 15, 2015
Operation: Air carrier
Aircraft: N334CJ
Make and model: Saab 340B
Aircraft serial: 340B334
Aircraft time: 39,289 hours, 46,891 cycles
Engine: Ge CT79B
Engine time: 36,369 hours, 38,021 cycles
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Engine
Condition: Making Metal
Location: Left
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

DURING CRUISE, LT CHIP DETECTOR LIGHT INTERMITTENT, ONE CHIME. LT ENGINE HAD PREVIOUS CHIP DETECTOR LIGHT ON, REPORTS WHICH RESULTED WITH NO PARTICLES PRESENT AT THE CHIP DETECTOR UPON INSPECTION. DURING THE LAST CHIP DETECTOR LIGHT INSPECTION, MINOR METAL PARTICLES WERE FOUND AND SENT TO A LABORATORY FOR ANALYSIS. ON ANALYSIS ARRIVAL, IT WAS DETERMINED THAT THE METAL PARTICLES ORIGINATED FROM BEARING CAGES.

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