# SDR DALA2025032402176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2025
- Submitted: March 24, 2025
- Operation: Air carrier
- Aircraft: [N948DZ](https://openairdocs.org/aircraft/N948DZ), registered now
- Make and model: Boeing 737-9GPER
- Registry model: [Boeing 737-9GPER](https://openairdocs.org/model/boeing-737-9gper) (OpenAirDocs)
- Aircraft serial: 38731
- Aircraft time: 28,035 hours, 15,295 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Bleed Air Sys
- Condition: Tripped
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025032402176

## Discrepancy

SHIP 3948 -ATB- RETURNED ATL DUE TO RT BLEED TRIP AND UNABLE TO MAINTAIN PRESSURIZATION WITH LT PACK ON MEL. CORRECTIVE ACTION: REPLACED LT ACM AND RT BLEED AIR REGULATOR. BOTH PACKS OPS CHECK GOOD.

---
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.