# SDR SWAA2025071590453

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2025
- Submitted: July 15, 2025
- Operation: Air carrier
- Aircraft: [N8657B](https://openairdocs.org/aircraft/N8657B), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 42535
- Aircraft time: 33,663 hours, 16,345 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Bleed Air Sys
- Condition: Leaking
- Location: Zone 600
- Stage of operation: CL
- 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/SWAA2025071590453

## Discrepancy

RIGHT DUCT PRESSURE OFF THE SCALE HIGH @ 10;000 FEET RIGHT DUCT PRESSURE OFF THE SCALE HIGH @ 10000 FEET<[01] UPON INSPECTION; FOUND PRSOV LEAKING EXCESSIVELY. REMOVED AND REPLACED PRSOV IAW AMM 36-11-04.

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