# SDR SWAA970181

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N621SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 28037
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Anti-Ice Valve
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: CL
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA970181

## Discrepancy

AFTER TAKEOFF, NUMBER 1 ENGINE COWL ANTI-ICE VALVE FAILED AFTER TAKEOFF AND WOULD NOT OPEN.  AIRCRAFT RETURNED TO PHX, DUE TO WEATHER AND MADE AN UNEVENTFUL LANDING.  REPLACED VALVE AND RAN ENGINE PER BOEING M/M.

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