# SDR DALA2026012100454

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 2026
- Submitted: January 21, 2026
- Operation: Air carrier
- Aircraft: [N129DU](https://openairdocs.org/aircraft/N129DU), registered now
- Make and model: Airbus BD-500-1A10
- Registry model: [Airbus BD-500-1A10](https://openairdocs.org/model/airbus-canada-ltd-ptnrsp-bd-500-1a10) (OpenAirDocs)
- Aircraft serial: 50048
- Aircraft time: 15,006 hours, 6,942 cycles
- System (JASC): [2620 · Extinguishing System](https://openairdocs.org/jasc/2620)
- Part: Fire Bottle
- Condition: Faulted
- Location: Zone 100
- 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/DALA2026012100454

## Discrepancy

DIVERTED TO SLC DUE TO CARGO BTL FAIL MESSAGE.  PERFORMED RESISTANCE CHECKS OF WIRING FROM THE FIDEX TO THE CARGO BOTTLE AND PRESSURE SWITCH, FOUND RESISTANCE FLUCTUATING IN BOTTLE PRESSURE SWITCH WHEN TAPPING ON THE BOTTLE PRESSURE SWITCH, REPLACED LOW-RATE DISCHARGE CARGO EXTINGUISHING BOTTLE. (LP# 8025427)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.