# SDR DALA2022101806728

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 2022
- Submitted: October 25, 2022
- Operation: Air carrier
- Aircraft: [N103DU](https://openairdocs.org/aircraft/N103DU), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 50022
- Aircraft time: 8,784 hours, 4,134 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Bleed Valve
- Condition: Faulty
- 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/DALA2022101806728

## Discrepancy

AFTER APU STARTED ON GROUND, APU AIR PRODUCED SMELL OF FUMES, FILLED THE CABIN, AND FA'S CALLED FLIGHT DECK TO REPORTT A SMELL IN THE CABIN. SWITCHED OFF APU BLEED FOR APROX. 1 MIN. FUMES DISSIPATED. C/W NO GO ODI PREVENTION PROGRAM A220 2172- SMOKE / FUMES IN THE CABIN. REF MD LOG #2453291. ISOLATED SOURCE TO APU BLEED AIR,. APU BLEED AIR VALVE DEFERRED ON LOG#9676599. (LP# 9676598)

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