SDR 2003UALA00198

Difficulty date

February 22, 2003

Submitted

March 26, 2003

Operation

Air carrier

Aircraft

N926UA

Make and model

Boeing 737522

Aircraft serial

26648

Aircraft time

31,147 hours, 23,481 cycles

Engine

Ge CFM56*

Engine time

16,598 hours, 24,886 cycles

System (JASC)

4920 · APU Core Engine

Part

Turbine Wheel

Part number

4500381

Part serial

V31WA475

Condition

Failed

Location

Apu

Part time

10,966 hours, 18,155 cycles

Stage of operation

NR

How discovered

9

Nature of condition

O

Precautionary procedure

O

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