SDR BHKA10FNFEB252009

Service difficulty report · Turbine Blades · Lear 36LEAR

Difficulty date: February 25, 2009
Submitted: February 28, 2009
Operation: General aviation
Aircraft: N10FN
Make and model: Lear 36LEAR
Aircraft serial: 015
Aircraft time: 17,942 hours, 8,546 cycles
Engine: Garrtt TFE731*
Engine time: 10,416 hours
System (JASC): 7250 · Turbine Section
Part: Turbine Blades
Condition: Failed
Location: Engine
Stage of operation: CR
How discovered: O
Nature of condition: E, 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

WHILE CLIMBING AT 17,000 FT, APPROX 40 MINUTES INTO FLIGHT, HEARD LOUD BANGS COMING FROM THE RT ENG. THE ENGINE SHUTDOWN, AND THE A/C LANDED (UNSCHEDULED) WITHOUT INCIDENT. UPON VISUAL INSPECTION, IT WAS FOUND THERE WAS CONTAINED TURBINE FAILURE, AND BLADES WERE MISSING. THE ENGINE IS BEING REMOVED FOR TEARDOWN ANALYSIS, AND INVESTIGATION BY MAINT.