# SDR ASAA2018011123149

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 11, 2018
- Submitted: January 17, 2018
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 37,325 hours, 11,402 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Cabin Pressure
- Condition: False Indication
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018011123149

## Discrepancy

DIFFERENTIAL PRESSURE HOLDING STEADY AT 8.5 PSI IN AMBER WHILE CRUISING AT FL 380,  SHOWING APP 6800 FT CABIN ALTITUDE.  ACFT GROUNDED.  ACCOMPLISHED FIM 21-33 TASK 803,  ALL CHECKED NORMAL.

---
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.