# SDR SWAA990201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N626SW](https://openairdocs.org/aircraft/N626SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27702
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Valve
- Part number: 176257
- Condition: Failed
- Location: Nr 2 Engine
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA990201

## Discrepancy

AIR RETURN DUE TO NR 2 ENGINE ANTI-ICE VALVE LIGHT FLICKERING AS IF INTRANSIT.  LANDED WITHOUT INCIDENT.  REMOVED AND REPLACED VALVE, REGULATOR AND SYSTEM CHECKED OK.

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