# SDR DALA2025052904141

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2025
- Submitted: May 29, 2025
- Operation: Air carrier
- Aircraft: [N596NW](https://openairdocs.org/aircraft/N596NW), registered now
- Make and model: Boeing 757351
- Aircraft serial: 32996
- Aircraft time: 73,711 hours, 24,391 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Condition: Broken
- Location: Acm
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025052904141

## Discrepancy

SHIP 5816 -PRES/DE- DUE TO CABIN PRESSURE WARNING ON DECENT. CORRECTIVE ACTION: FOUND DUCT BROKEN ABOVE ACM, REPLACED DUCT AND SEALS. R/R OUTFLOW VALVE ACT ASSY AND ACM AND SENSE LINE FOR LOW LIMIT VALVE. OPS AND LEAK CK GOOD. C/W SINGLE PACK CONF CHECK.

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