# SDR AALA202610053739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2026
- Submitted: October 6, 2026
- Operation: Air carrier
- Aircraft: [N421UW](https://openairdocs.org/aircraft/N421UW), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 10095
- Aircraft time: 22,159 hours, 5,998 cycles
- System (JASC): [2565 · Escape Slide](https://openairdocs.org/jasc/2565)
- Part: Switch
- Condition: Defective
- Location: Zone 800
- Component: Reservoir
- Component part number: 70200108
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202610053739

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: RIGHT OVERWING EMERGENCY RESEVOIR FAILED INDICATION TEST -MAINTENANCE DETERMINED THE MICROSWITCH ON THE RESERVOIR BOTTLE WAS DEFECTIVE PROHIBITING THE OPERATIONAL TEST FROM WORKING ON THE CIDS PANEL - MAINTENANCE REPLACED THE RESERVOIR VALVE ASSEMBLY PER JOB CARD 2525E041-003

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