# SDR ASAA2023030342178

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2023
- Submitted: March 6, 2023
- Operation: Air carrier
- Aircraft: [N975AK](https://openairdocs.org/aircraft/N975AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64960
- Aircraft time: 3,231 hours, 953 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Valve
- Part number: 632160682
- Part serial: 1045
- Condition: Failed
- Location: Right Wing
- Part time: 3,251 hours, 960 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023030342178

## Discrepancy

WING ANTI-ICE= R VALVE= ILLUMINATED WITH SWITCH ON- EXTINGUISHED WITH SWITCH OFF. VALVE FAILED TO OPEN. GROUNDED - YES. REMOVED AND REPLACED RH WING THERMAL ANTI-ICE VALVE REF B737-9 AMM 30-11-11.

---
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.