SDR JBZA20130429001

Service difficulty report · Compressor · Agusta A109

Difficulty date: April 16, 2013
Submitted: April 29, 2013
Operation: Air carrier
Aircraft: N21RX
Make and model: Agusta A109
Aircraft serial: 7131
Aircraft time: 10,179 hours
Engine: Allsn 250C20B
Engine time: 8,862 hours, 10,024 cycles
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Compressor
Condition: Fod
Location: Nr 2 Engine
Part time: 8,862 hours, 10,024 cycles
Stage of operation: CL
How discovered: O
Nature of condition: C, B, Y
Precautionary procedure: A

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

What was found

ACFT WAS DEPARTED. DURING LIFT OFF, NR 2 ENGINE EXPERIENCED A COMPRESSOR STALL ASSOCIATED WITH UNUSUAL NOISES. LANDED WITHOUT INCIDENT. GROUND OBSERVERS REPORTED SEEING SEVERAL THREE FOOT FLAMES COMING FROM NR 2 ENGINE EXHAUST ACCOMPANIED BY SOUNDS LIKE A CAR BACKFIRING. ON INSPECTION, NR 2 ENGINE COMPRESSOR BLADES FOUND TO HAVE SIGNIFICANT FOD DAMAGE AND A SMALL SCREW WAS FOUND IN THE OTBD REAR CORNER OF THE INLET RECESS. ENGINE HAD BEEN REPLACED DUE TO AN OIL LEAK EARILIER.