# SDR ASAA2013111596426

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 15, 2013
- Submitted: November 18, 2013
- Operation: Air carrier
- Aircraft: [N431AS](https://openairdocs.org/aircraft/N431AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43255
- Aircraft time: 254 hours, 92 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Warning Light
- Condition: Intermittent
- Location: Anti Ice
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013111596426

## Discrepancy

AFTER LANDING, NR 2 ENGINE ANTI-ICE VALVE STUCK IN TRANSIT-BRIGHT BLUE LIGHT ON OVERHEAD AND AMBER ANTI ICE ON ENGINE PANEL. MOVED THROTTLES TO 40 CYCLED SWITCH ON-DIM BLUE AND GREEN ANTI ICE LIGHTS THEN SWITCH OFF AND BRIGHT BLUE/AMBER AGAIN.  TRIED THREE TIMES.  ACFT GROUNDED.  REF FIM TASK 30-21, TASK 804, ALL STEPS A THRU E DONE ALL TEST PASS. IAW STEP E. 3. B.  THIS WAS AN INTERMITTENT FAULT.

---
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.