# SDR O2GA2019081450701

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2019
- Submitted: August 14, 2019
- Operation: Air carrier
- Aircraft: N507UP
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605542
- Aircraft time: 11,273 hours, 8,231 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Condition: Smoke
- Stage of operation: TX
- 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/O2GA2019081450701

## Discrepancy

WHILE ON GROUND WAITING FOR PASSENGERS TO ARRIVE AND APU RUNNING FOR OVER AN HOUR NOTICED SMOKE/HAZE IN THE COCKPIT. AIRCRAFT WAS SHUTDOWN AND EMERGENCY SERVICES CONTACTED. MAINTENANCE ISOLATED DISCREPANCY TO THE APU. APU SYSTEM WAS DEFERRED PER GAMA LLC MEL.

---
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.