# SDR SWAA990202

- 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: CL
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA990202

## Discrepancy

ON CLIMBOUT, NR 2 ENGINE ANTI-VALVE POSITION LIGHT WENT FROM DIM TO BRIGHT AND REMAINED BRIGHT (ANTI-ICE VALVE LIGHT). AIRCRAFT RETURNED TO PHX.  REMOVED AND REPLACED NR 2 ENGINE ANTI-ICE VALVE PER M/M, OPS CKS GOOD.  REMOVED AND REPLACED NR 2 ENG ANTI-ICE VALVE PER MM, OPS CHECKS GOOD PER MM (P/N 172625-7) (S/N 546) OFF, (S/N  293C).

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