# SDR AALA201608299001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2016
- Submitted: August 30, 2016
- Operation: Air carrier
- Aircraft: [N534UW](https://openairdocs.org/aircraft/N534UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3989
- Aircraft time: 26,308 hours, 9,175 cycles
- Engine: Iae V2533A5
- Engine time: 30,036 hours, 11,398 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 38007081
- Part serial: P3398
- Condition: Smoke
- Location: Zone 100
- Part time: 30,036 hours, 11,398 cycles
- Stage of operation: UK
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201608299001

## Discrepancy

AIRCRAFT WAS GROUNDED:  THERE IS A LOT OF SMOKE FROM APU EXHAUST DURING SHUTDOWN.  MAINTENANCE REPLACED THE APU IAW TASK CARD 
26L31049003 AND ACCOMPLISHED A SATISFACTORY LEAK AND OPS CHECK.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.