What was found
APU TURBINE WHEEL SEPARATED INTO TWO HALVES. FAILURE DUE TO A CASTING FLAW AT THE MIDDLE OF THE TURBINE WHEEL.
- Difficulty date
- August 15, 1995
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N7273U
- Make and model
- Boeing 727222
- Aircraft serial
- 21420
- Engine
- Pwa JT8D15
- System (JASC)
- 4920 · APU Core Engine
- Part
- Turbine Wheel
- Part number
- 38420722
- Condition
- Failed
- Location
- Apu
- Part time
- 4,992 hours
- Component
- Allied Signa · 98CK
- Stage of operation
- CR
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.