# SDR SWAA071256

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2007
- Submitted: March 8, 2007
- Operation: Air carrier
- Aircraft: [N246LV](https://openairdocs.org/aircraft/N246LV), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32507
- Aircraft time: 2,579 hours, 1,460 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Valve
- Part number: 32194211
- Part serial: 11236
- Condition: Faulty
- Location: A/C Pack
- Stage of operation: NR
- 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/SWAA071256

## Discrepancy

DECLARED EMERGENCY/AIR TURNBACK.  CREW REPORTED STRONG ELECTRICAL/OZONE SMELL IN COCKPIT AND CABIN.  REMOVED AND REPLACED LEFT A/C PACK 35 DEGREE VALVE PER MM.

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