SDR IY22001F00002

Service difficulty report · Blade · Cessna 500CESSNA

Difficulty date: July 30, 2001
Submitted: September 21, 2001
Operation: Air carrier
Aircraft: N15AW
Make and model: Cessna 500CESSNA
Aircraft serial: 5000139
Engine: Pwa JT15D1A
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Blade
Condition: Separated
Location: Hp Turbine
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

PCE 76307, SUSTAINED HPT BLADE SEPARATION AND RESULTED IN DOWN STREAM HOT SECTION DAMAGE. THIS SEPARATION OCCURS AT 580.5 HOURS AFTER HOT SECTION, WHICH IS COMMON TO THE PREVIOUS FAILURES/MDRS SUBMITTED. THE GROWTH (NECKING) IS FROM .007 INCHES TO .012 INCHES. RECOMMENDATIONS: A) PERFORM GROWTH CHECK FOR THE 3028601 TURBINE BLADES AT 1750 HOURS (HSI) AND REJECT IF GROWTH IS OVER .004 INCHES. B) PLACE LIFE LIMIT OF 1750 ON 3028601 BLADES.