# SDR SCNA20260323131

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 22, 2026
- Submitted: March 23, 2026
- Operation: Air carrier
- Aircraft: [N841SY](https://openairdocs.org/aircraft/N841SY), registered now
- Make and model: Boeing 737-800
- Registry model: [Boeing 737-800](https://openairdocs.org/model/boeing-737-800) (OpenAirDocs)
- Aircraft serial: 40865
- Aircraft time: 43,299 hours, 20,142 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic System
- Condition: Overserviced
- Location: Zone 100
- Stage of operation: DE
- How discovered: O
- Nature of condition: W, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SCNA20260323131

## Discrepancy

DURING DECENT INTO DFW WE SMELLED A DIRTY SOCK ODOR IN THE FLIGHT DECK THE LEAD FA REPORTED THIS AS WELL.	PERFORMED FIM 21-00 ASK 806 AND FOUND HYD B QTY AT OVER 106%. LOWERED HYD  TO 99%. RAN APU AND NO SMELL DETECTED. RAN #1 AND #2 ENG, NO SMELL DETECTED AFTER 5 MINS. BOTH OILS AT 18. OK FOR SERVICE.

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