# SDR SWAA2024072415901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2024
- Submitted: July 24, 2024
- 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: 32,305 hours, 15,648 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Sensor
- Condition: Faulted
- Location: Zone 800
- Stage of operation: CL
- How discovered: O
- Nature of condition: P
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2024072415901

## Discrepancy

AIRCRAFT FAILED TO PRESSURIZE AFTER TAKE OFF. FWD SERVICE DOOR SHOWS DAY LIGHT. MAX ALT 12000FT CABIN ALT FOLLOWED FLIGHT ALT. . DOOR WARN NEVER DISPLAYED.<[01] ADJUSTED FWD SERVICE DOOR GUIDE ARM PER AMM 52-41-00. R&R'D SENSOR ASSY FOR S194 PER AMM 52-71-11. OPS CK 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.