# SDR AALA202601204417

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2026
- Submitted: January 20, 2026
- Operation: Air carrier
- Aircraft: [N187US](https://openairdocs.org/aircraft/N187US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1704
- Aircraft time: 76,047 hours, 29,623 cycles
- System (JASC): [5240 · Service Doors](https://openairdocs.org/jasc/5240)
- Part: Bottle
- Condition: Low Pressure
- Location: Zone 800
- Stage of operation: NR
- 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/AALA202601204417

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: CIDS PANEL SHOWING CAUTION WITH BOTH RED LIGHTS ILLUMINATED. MAINTENANCE DETERMIINED THE CIDS FAULTS WERE DUE TO THE R2 DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PRESSURE BEING LOW. MAINTENANCE SERVICED THE R2 DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PER AMM 52-10-00.

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