SDR 20000620SH015

Service difficulty report · Blade · Beech B99

Difficulty date: May 30, 2000
Submitted: June 20, 2000
Operation: General aviation
Aircraft: N99TH
Make and model: Beech B99
Aircraft serial: U155
Engine: Pwa PT6A27
System (JASC): 7250 · Turbine Section
Part: Blade
Part number: 3013102
Condition: Missing
Location: Pt Disk
Stage of operation: TO
How discovered: V
Nature of condition: E
Precautionary procedure: O

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

What was found

ON TAKEOFF, PILOT FELT AIRCRAFT SHUDDER, RETURNED TO FIELD WITHOUT ANY DAMAGE TO AIRCRAFT. UPON INVESTIGATION ON ENGINE, FOUND 2 INCH SQUARE AREA MISSING FROM EXHAUST. UPON FURTHER INVESTIGATION, FOUND PORTION OF POWER TURBINE BLADE MISSING. THIS ENGINE HAD 339.1 HOURS SINCE POWER SECTION WAS DISASSEMBLED FOR POWER TURBINE BLADE INSPECTION. (X)

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