# SDR SIMA20240824001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 24, 2024
- Submitted: August 26, 2024
- Operation: Air carrier
- Aircraft: [N749BM](https://openairdocs.org/aircraft/N749BM), registered now
- Make and model: Emb ERJ 170-100 SE
- Registry model: [EMB ERJ 170-100 SE](https://openairdocs.org/model/embraer-erj-170-100-se) (OpenAirDocs)
- Aircraft serial: 17000133
- Aircraft time: 37,776 hours, 27,800 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Cabin Pressure
- Condition: Faulted
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20240824001

## Discrepancy

PRESSURIZATION RATE DROPPED SUDDENLY ABOVE 12000. MEL 21-45 AUTH # 081274 D-C. REF LOG PAGE #5142049 ITEM #1. PERFORMED INSPECTION FOR LEAKS AT PACKS AND PCA DUCTING. NO LEAKS FOUND. PRESSURIZATION LEAK DOWN CHECK GOOD IAW ERJ 170 AMM 21-31-00. MEL ITEM RESTORED.

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