Service difficulty report · Compressor · Saab 340B

Difficulty date
January 5, 2023
Submitted
January 6, 2023
Operation
Air carrier
Aircraft
N481BC
Make and model
Saab 340B
Aircraft serial
340B274
Aircraft time
39,132 hours, 32,498 cycles
Engine
Ge CT79B
Engine time
38,244 hours, 45,037 cycles
Part
Compressor
Part number
NOTENTERED
Part serial
NOTENTERED
Condition
Stalled
Location
Nr 2 Engine
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
A

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

What was found

DURING TAKEOFF REACHING 1000FT ENGINE2 FAILED . CONSULTED WITH CREW AND THEY STATED THAT IT WAS A COMPRESSOR STALL – MAINTENANCE INSPECTED THE INLET AND FOUND NO DISCREPANCIES. INSPECTED COMPRESSOR VG ACTUATING SYSTEM WITH NO DEFECTS NOTED. RAN ENGINE AT LOW AND HIGH POWER SETTINGS WITH NO DEFECTS OR STALLS. PERFORMED BOROSCOPE INSPECTION OF ENGINE ANDACCOMPLISHED A DFDR DOWNLOAD. THE DATA WAS ANALYZED AND AN ITT EXCEEDANCE WAS FOUND. THE ENGINE IS BEING REMOVED FOR SHOP VISIT.

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