# SDR SIMA202009032001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2020
- Submitted: September 3, 2020
- Operation: Air carrier
- Aircraft: N843AE
- Make and model: Emb EMB-135KL
- Registry model: [EMB EMB-135KL](https://openairdocs.org/model/embraer-emb-135kl) (OpenAirDocs)
- Aircraft serial: 145680
- Aircraft time: 37,307 hours, 33,386 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Cabin Pressure
- Condition: Malfunctioned
- Stage of operation: NR
- 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/SIMA202009032001

## Discrepancy

AUTO PRESSURIZATION ISSUE CABIN ALT REACHED 9000FT A/C AT 33,000FT, REPRESSURIZED UPON DESCENT INITIATION.  C/A-PERFORMED FUNCTIONAL TEST OF PRESSURIZATION CONTROL SYSTEM IN AUTOMATIC MODE, FUNCTIONAL TEST IS GOOD, AC IS OK FOR SERVICE, DONE IAW AMM 21-31-00.

---
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.