SDR 98ZZZX4189

Service difficulty report · Blade · Lear 35A

Difficulty date
September 9, 1998
Submitted
March 26, 2000
Operation
General aviation
Filed by
IY2R915K
Lufthansa Technik Engine Services, Inc
Aircraft
N28MJ
Make and model
Lear 35A
Aircraft serial
224
Engine
Garrtt TFE73122B
Part
Blade
Part number
30727121
Condition
Failed
Location
Turbine
Part time
3,513 hours
Stage of operation
CR
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, NR 2 ENGINE EXPERIENCED A RAPID RISE IN INTERSTAGE TURBINE TEMPERATURE (ITT) AND VIBRATION LEVEL. THRUST WAS REDUCED TO IDLE. A SAFE LANDING WAS MADE AT NEW ORLEANS INTERNATIONAL AIRPORT (MSY). ENGINE WAS REMOVED FROM AIRCRAFT FOR INVESTIGATION AND REPAIR. DISASSEMBLY REVEALED STRESS RUPTURE TO ONE HIGH PRESSURE TURBINE BLADE, P/N 3072712-1. SECONDARY DOMESTIC OBJECT DAMAGE WAS CONTAINED.

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