# SDR AALA202102159040

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2021
- Submitted: February 15, 2021
- 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: 62,241 hours, 23,480 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Panel
- Part number: 335TS08Y01
- Part serial: 3548
- Condition: False Indication
- Location: Apu Bay
- Part time: 3,386 hours, 1,352 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202102159040

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: APU AGENT DISCHARGE LIGHT ON. REPLACED APU FIRE BOTTLE (AALA202102159009) AND APU FIRE PANEL (AALA202102159040) PER AMM 26-22-41 AND 26-12-12. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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