# SDR ASAA2017011419374

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2017
- Submitted: January 18, 2017
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 32,376 hours, 9,768 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Warning System
- Condition: Intermittent
- Location: Cockpit
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017011419374

## Discrepancy

ENGINE ANTI ICE WAS TURNED OFF DURING ENGINE SHUTDOWN. NR 1 COWL VALVE REMAINED OPEN WITH SWITCH IN OFF POSITION. GROUNDED - YES. ACCOMPLISHED FIM 30-21 TASK 804. INTERMITTENT FAULT. NR 1 ENG COWL ANTI ICE VALVE & SWITCH OPS CHECK GOOD. NO HISTORY 30 DAYS.

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