# SDR ASAA0956875

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2009
- Submitted: October 30, 2009
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 2,767 hours, 825 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Anti-Ice Valve
- Part number: 672906002
- Part serial: 5557
- Condition: Failed
- Location: Lt Wing
- Part time: 2,752 hours, 812 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0956875

## Discrepancy

LEFT (BLUE) VALVE OPEN LIGHT FOR THE WING ANTI ICE FLICKERS OFF AND ON ONCE IT IS SECURED OFF.  REMOVED AND REPLACED WING THERMAL ANTI ICE VALVE FOR LT WING.  OPS AND LEAK CHECKED IAW MM 30 11 11 400 801 AND MM 30 11 11 710 801.

---
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.