# SDR J7SA2025111000460

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2025
- Submitted: November 10, 2025
- Operation: Air carrier
- Aircraft: [N531FX](https://openairdocs.org/aircraft/N531FX), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20150
- Aircraft time: 16,978 hours, 10,600 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 3471A020000
- Part serial: 00811
- Condition: Faulted
- Location: Zone 100
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/J7SA2025111000460

## Discrepancy

BURNING SMELL ON DESCENT ACCOMPANIED BY VERY WARM AIR. AIRCRAFT LANDED WITHOUT INCIDENT AT KSSI. AFTER LANDING, CREW RECEIVED AMBER PACK TEMP HIGH CAS ON SYNOPTIC. REPLACED AIR CYCLE MACHINE. PERFORMED SUCCESSFUL OPS CHECK AND LEAK CHECK IAW CH 300 AMM 21-52-13.

---
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.