# SDR DXTA2026051508060

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2026
- Submitted: May 15, 2026
- Operation: Air carrier
- Aircraft: [N238QS](https://openairdocs.org/aircraft/N238QS), registered now
- Make and model: Cndair CL6002B16
- Aircraft serial: 6129
- Aircraft time: 6,774 hours, 3,745 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Air Filter
- Part number: 18084928
- Condition: Dirty
- Location: Zone 100
- Stage of operation: CR
- 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/DXTA2026051508060

## Discrepancy

WHEN TURNING APU BLEEDS ON, YOU GET A STRONG DIRTY SOCK SMELL FROM THE AIR.  IT DISSIPATED WHEN USING ENGINE BLEEDS BUT CAME BACK ONCE WE WENT BACK TO APU BLEEDS.  IT IS STRONGER ON THE GROUND VS INFLIGHT. CORRECTIVE ACTION: REMOVED BOTH L/H AND R/H FILTER SOCKS. NOTED BOTH SOCKS CONTAMINATED AND DISCOLORED. POO JWB 5-13-26 IAW MM 21-51-13-000-801. INSTALLED NEW FILTER WATER COALESCER SOCKS IAW MM 21-51-13-400-801. PERFORMED A LEAK TEST OF THE AIR CONDITIONING SYSTEM IAW MM 21-51-00-790-801. NO LEAKS NOTED. RAN APU AND ENGINES BLEEDS SEPARATELY, CONFIRMED NO ODORS NOTED .

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