# SDR DALA2025082506285

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 16, 2025
- Submitted: August 25, 2025
- Operation: Air carrier
- Aircraft: [N503DZ](https://openairdocs.org/aircraft/N503DZ), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 10974
- Aircraft time: 13,854 hours, 3,320 cycles
- Engine: Iae PW1133GJM
- Engine time: 5,634 hours, 1,471 cycles
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Anti-Ice Valve
- Condition: Faulted
- Location: Nr 1 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025082506285

## Discrepancy

DIV - TO SLC DUE TO ENG 1. ANTI-ICE CLOSED MESSAGE. COULD NOT CONTINUE DUE TO ICING CONDITIONS IN FLIGHT.   DEFERRED ENG 1 ANTI-ICE SYSTEM PER MEL. LATER, REPLACED UPPER ANTI-ICE VALVE ON NBR 1 ENGINE. (LP 7493380)

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