# SDR ASAA2015100513341

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2015
- Submitted: October 7, 2015
- Operation: Air carrier
- Aircraft: [N534AS](https://openairdocs.org/aircraft/N534AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35202
- Aircraft time: 18,957 hours, 5,567 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Anti-Ice Valve
- Condition: Malfunctioned
- Location: Nr 1 Engine
- 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/ASAA2015100513341

## Discrepancy

AFTER ENGINE SHUTDOWN, NR 1 COWL VALVE OPEN LIGHT.  REMAINED ON WITH ENGINE ANTI-ICE SWITCH OFF.  ACFT GROUNDED.  CYCLED NR 1 ENGINE COWL VALVE SWITCH.  LIGHT EXTINGUISHED. PERFORMED NR 1 ENGINE COWL ANTI-ICING OPS CHECK IAW AMM 30-21-00-710-801, OPS CHECK NORMAL.

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