# SDR CALA2026070717598

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2026
- Submitted: July 7, 2026
- Operation: Air carrier
- Aircraft: [N77530](https://openairdocs.org/aircraft/N77530), registered now
- Make and model: Boeing 737824
- Aircraft serial: 39998
- Aircraft time: 46,853 hours, 17,259 cycles
- System (JASC): [5100 · Standard Practices/Structures](https://openairdocs.org/jasc/5100)
- Part: None
- Condition: None
- Location: None
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026070717598

## Discrepancy

MUSTY ODOR FROM ROW 31  AND BACK. IDENTIFIED THE SOURCE OF ODOR FROM GROUND UNIT. DISCONNECTED GROUND AIR, RAN APU AND PACKS.

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