# SDR ASAA2012102193165

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2012
- Submitted: October 24, 2012
- Operation: Air carrier
- Aircraft: [N516AS](https://openairdocs.org/aircraft/N516AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39044
- Aircraft time: 14,753 hours, 4,709 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Turbine Blades
- Condition: Damaged
- Location: Apu
- Component: Apu
- Component part number: 38007021
- Stage of operation: IN
- How discovered: B
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2012102193165

## Discrepancy

POWERPLANT ENGINEERING REPORTED A SHIFT UP OF THE APU EGT CT5ATP.   ACCOMPLISHED BOROSCOPE OF APU 1ST STAGE TURBINE BLADE, SHIFT AND FIRST STAGE STATOR AND FIRST STAGE TURBINE INSPECTION REF AMM 49-11-00-210-801 AND AMM 49-21-00-200-802.   FOUND 1/2 BLADE T/E MISSING.  REPLACED APU, REF TASK CARD 78349010 STEP 4, APU INSTALLATION  COMPLETED APU INSTALLATION STEP 5 A-L. IAW MM 49-11-00-400-802.  COMPLETED INSTALLATION IAW MM 49-11-00-400-802.  ACCOMPLISHED APU OPS TEST IAW MM 49-11-00-710-801.

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