# SDR DALA2025062304665

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 22, 2025
- Submitted: June 23, 2025
- Operation: Air carrier
- Aircraft: [N335NW](https://openairdocs.org/aircraft/N335NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 340
- Aircraft time: 89,820 hours, 41,227 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Odor
- Location: Nr 1
- Stage of operation: NR
- 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/DALA2025062304665

## Discrepancy

SHIP 3235 DISC: AR 2500' ON DEPARTURE DIRTY SOCK ODOR IN COCKPIT. FA DID NOT SMELL ANYTHING. QRH COMPLETED AND IN CONJUNCTION WITH MCC ISOLATED SMELL TO PACK #1. CONTINUED TO DESTINATION WITH PACK 1 OFF. AFTER LANDING TURNED PACK 1 ON AND DIRTY SOCK ODOR CAME BACK. C/A: OPERATED APU WITH NO EVIDENCE OF ODOR. INSPECTED APU COMPARTMENT & INLET WITH BLACKLIGHT, NO DEFECTS NOTED. OPERATED BOTH ENGINES AND CONFIRMED ODOR PRESENT FROM #1 ENGINE WITH NBR 1 PACK ISOLATED, REFERENCE WORKCARD 0550-2002. REQUIRES BORO AS PER W/C 7900-2001(854265). PERFORMED BORO ON #1 ENG HPC PER AMDS WORKCARD 7900-2001. FOUND OIL WETTING IN STAGES 1-6. DID NOT INSPECT FURTHER BACK AFTER CONFERENCE. ENGINE CHANGE REQUIRED. OIL QUANTITY FOR BOTH ENGINES CHECKED AND SATISFACTORY ON ARRIVAL  REPLACED #1 ENGINE PER AMDS CARD 7100-9901-LT. PERFORMED ECS BUROUT PER A320 AMM 21-00-00 LEVEL B. MCC NOTIFIED. OK FOR SERVICE. (LP: 7263612)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.