# SDR AALA20151105004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 4, 2015
- Submitted: November 5, 2015
- Operation: Air carrier
- Aircraft: [N789AN](https://openairdocs.org/aircraft/N789AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30252
- Aircraft time: 61,648 hours, 7,893 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Blade
- Condition: Cracked
- Location: Apu
- Part time: 53,919 hours, 6,903 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: A, B, P
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20151105004

## Discrepancy

DURING TAXI IN, FIRE & SMOKE WAS REPORTED FROM APU AFTER SHUTDOWN.  NO FLIGHT DECK WARNING, INDICATION RECEIVED.  APU FIRE EXTINGUISHER WAS DISCHARGED.  APU ENGINEERING REPORTS T1K-TI BLADE CRACKING.

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