# SDR DALA2026082404800

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 2026
- Submitted: August 25, 2026
- Operation: Air carrier
- Aircraft: [N858DZ](https://openairdocs.org/aircraft/N858DZ), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31969
- Aircraft time: 32,814 hours, 12,811 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026082404800

## Discrepancy

ATB/SMKE/DE- RETURNED TO PIT DUE TO REPORT OF SMOKE IN THE CABIN.  REPLACED LT ACM AND LT FLOW CONTROL VALVE. OPS CHECK GOOD. (9137373) AIRCRAFT WAS GROUNDED

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