# SDR DXTA2022090769490

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2022
- Submitted: September 22, 2022
- Operation: Air carrier
- Aircraft: [N527QS](https://openairdocs.org/aircraft/N527QS), registered now
- Make and model: Cessna 120
- Registry model: [Cessna 120](https://openairdocs.org/model/cessna-120) (OpenAirDocs)
- Aircraft serial: 680A0069
- Aircraft time: 5,583 hours
- System (JASC): [4910 · APU Cowling/Containment](https://openairdocs.org/jasc/4910)
- Part: Apu
- Part number: 38007851
- Part serial: P814
- Condition: Damaged
- Location: Tail
- Stage of operation: TX
- How discovered: V
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2022090769490

## Discrepancy

APU BLEED AIR: AFTER NORMAL STARTUP WHEN APU BLEED AIR SELECTED SMOKE FILLED THE CABIN AND COCKPIT
(PER CREW, POST FLIGHT, NO PAX ON BOARD) // SIGNOFF// REPLACED APU WITH REPAIRED APU IAW CESSNA 680A AMM TASK-49-10-00, REFER TO 15,1 FOR LEAK AND OPS CHECKS, REMOVED P/N-3800785•1 S/N-P-814 INSTALLED P/N-380078S-1 S/N-P-763

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