# SDR SWAA115121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2011
- Submitted: July 19, 2011
- Operation: Air carrier
- Aircraft: [N344SW](https://openairdocs.org/aircraft/N344SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 24152
- Aircraft time: 73,009 hours, 64,390 cycles
- System (JASC): [2916 · Hydraulic Reservoir, Main](https://openairdocs.org/jasc/2916)
- Part: Module
- Part number: 7321124003
- Part serial: 1161587
- Condition: Faulty
- Location: Hyd Reservoir
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA115121

## Discrepancy

AIR TURNBACK/DECLARED EMERGENCY.  FAINT ODOR IN CABIN/COCKPIT AFTER TAKEOFF.  REMOVED AND REPLACED HYD RESERVOIR AIR PRESSURE MODULE PER MM.

---
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.