# SDR CALA2024061001745

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 8, 2024
- Submitted: June 10, 2024
- Operation: Air carrier
- Aircraft: [N37437](https://openairdocs.org/aircraft/N37437), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33532
- Aircraft time: 47,172 hours, 16,588 cycles
- System (JASC): [3130 · Data Recorders (Flight/Maintenance)](https://openairdocs.org/jasc/3130)
- Part: Switch
- Part number: M88051008
- Condition: Inoperative
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2024061001745

## Discrepancy

CABIN ALTITUDE WAS  SLOWLY RISING BUT NEVER EXCEEDED 10000 BITE OF DCPC SHOWED NO FAULTS. PERFORMED PRESSURIZATION CHECK PHASE 1 UP TO 4 PSI IAW AMM 21-00-05-780-801. AIRPLANE PRESSURIZED NORMALLY AND NO LEAKS WERE FOUND,  NO FAULTS ON PSEU BITE. OK PER TASK 52-71-42-710-801.

---
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.