# SDR AALA202603042392

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2026
- Submitted: March 4, 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 CFM567B20
- Engine time: 36,251 hours, 15,868 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Oil System
- Condition: Leaking
- Location: Nr 2 Engine
- Part time: 36,251 hours, 15,868 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202603042392

## 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 FOR (AALA202602232392): SUBMITTED 02/23/2026 BY DFW: REMOVED AND REPLACED NUMBER 2 ENGINE. PER JC 08L40072003**(CLOSED).

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