# SDR ASAA2017101722254

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2017
- Submitted: October 20, 2017
- Operation: Air carrier
- Aircraft: [N491AS](https://openairdocs.org/aircraft/N491AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44109
- Aircraft time: 7,570 hours, 2,579 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Warning Light
- Condition: False Activation
- Location: Nr 1 Anti-Ice
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017101722254

## Discrepancy

NR 1 ENGINE ANTI-ICE TAI LIGHT DOES NOT AGREE WITH BLUE LIGHT VALVE POSITION.  ACFT GROUNDED.  ACCOMPLISHED AN OPS CHECK OF THE NR 1 ENGINE TAI IAW AMM 30-21-00. OPS CHECKED NORMAL.

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