# SDR AALA202511287314

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 18, 2025
- Submitted: November 28, 2025
- 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: 75,731 hours, 29,489 cycles
- System (JASC): [5220 · Emergency Exits](https://openairdocs.org/jasc/5220)
- Part: Bottle
- Part number: FE277000
- Part serial: 676
- Condition: Defective
- Location: Zone 800
- Part time: 75,731 hours, 29,489 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202511287314

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY EXIT DOOR 834 DAMPER AND EMERGENCY OPERATION CYLINDER PERCUSION MECHANISM KNURLED SCREW DOES NOT OPERATE CORRECTLY. REPLACED DAMPER AND EMERGENCY OPERATION CYLINDER PER AMM 52-22-14.

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