# SDR AALA202602232392

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2026
- Submitted: February 23, 2026
- Operation: Air carrier
- Aircraft: [N935NN](https://openairdocs.org/aircraft/N935NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33231
- Aircraft time: 36,252 hours, 15,868 cycles
- Engine: Cfmint CFM567B242
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Compressor
- Condition: Leaking
- Stage of operation: TO
- How discovered: O
- Nature of condition: B, K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202602232392

## Discrepancy

AIRCRAFT WAS GROUNDED: THE FLIGHT ATTENDANTS REPORTED ODOR IN THE AFT CABIN DURING TAKEOFF AND LASTED ABOUT 5 MINUTES. ODOR DESCRIBED TO SMELL LIKE DIRTY SOCKS. TROUBLESHOT SOF EVENT PER WORKCARD 08L00021001. FOUND NUMBER 2 ENGINE TO BE THE SOURCE OF THE OIL AND DIRTY SOCK SMELL. LOW PRESSURE COMPRESSOR VBV DOORS FOUND WET WITH OIL. **SUPPLEMENTAL REPORT WILL BE SUBMITTED**(OPEN).

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