# SDR DALA2026071004067

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2026
- Submitted: July 11, 2026
- Operation: Air carrier
- Aircraft: [N919DU](https://openairdocs.org/aircraft/N919DU), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 63531
- Aircraft time: 23,143 hours, 9,199 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Valve
- Part number: 2079801
- Part serial: 19157208
- Condition: Odor
- Location: Zone 100
- Part time: 23,131 hours, 9,189 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/DALA2026071004067

## Discrepancy

FUMES EVENT PILOT AND F/A BEGAN TO DETECT AN ODOR DURING CLIMB OUT ABOUT 28000. FUMES CHECKLIST INITIATED AND ODOR DISSAPATED,  ODOR DISAPPATED AFTER LEAVING CLOUDS AND A/I OFF. ALSO NOTICED P6-4 01 CIRCUIT POPPED. FOUND OVERBOARD EXHAUST VALVE CIRCUIT BREAKER POPPED. R & R OVERBOARD EXHAUST VALVE IAW AMM 21-27. OPS CHKD GOOD NO BURNING ODORS,   LOG #1687227. (8721304) AIRCRAFT WAS GROUNDED.

---
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.