# SDR DALA2020021101097

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2020
- Submitted: February 11, 2020
- Operation: Air carrier
- Aircraft: [N824DN](https://openairdocs.org/aircraft/N824DN), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31935
- Aircraft time: 19,826 hours, 7,446 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Anti-Ice Valve
- Condition: Locked
- Location: Nr 1 Engine
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020021101097

## Discrepancy

SHIP 3834 NBR 1 ENG AND NOSE COWL A/I VLV LOCKED OPEN DUE TO AMBER COWL ANTI ICE VALVE LIGHT ILLUM**DISPATCHER SELECT EXTENSION** . CORRECTIVE ACTION: REF LOG 6724760; AS A PRECAUTION R/R CTAI SWITCH REF B737 AMM 30-21-21. (6724761).

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