# SDR CALA2026102620552

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2026
- Submitted: October 26, 2026
- Operation: Air carrier
- Aircraft: [N79541](https://openairdocs.org/aircraft/N79541), registered now
- Make and model: Boeing 737824
- Aircraft serial: 63725
- Aircraft time: 27,530 hours, 10,427 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Cabin Pressure
- Condition: Uncontrollable
- Stage of operation: CR
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026102620552

## Discrepancy

CREW REPORTS UNABLE TO CONTROL CABIN ALTITUDE. EMERGENCY DECLARED. CREW DESCENDED TO 10,000FT. NO OVERWEIGHT LANDING. FLIGHT CREW REPORTS BURNING ODOR DURING DESCENT.  RAN LEFT AND RIGHT PACKS TO EVALUATE FOR SMOKE ODOR IN CABIN, NO SMOKE ODOR NOTED IN CABIN REF AMM 21-00-00-800-801.

---
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.