# SDR HNAA2025060900407

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2025
- Submitted: June 9, 2025
- Operation: Air carrier
- Aircraft: [N652RS](https://openairdocs.org/aircraft/N652RS), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145432
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Dau
- Part number: 7013348949
- Part serial: 02065148
- Condition: Faulted
- Location: Zone 200
- Part time: 41,010 hours, 37,264 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2025060900407

## Discrepancy

AT FL220 CABIN PRESSURIZATION INDICATIONS ALL WENT DASHED. AIRCRAFT DID NOT RAPIDLY DECOMPRESS. DESCENDED TO 10000 AND DECLAIRED AN EMERGENCY.   FACT  06JUN25  04:40  ROA   R&R DAU 2 DUE TO POSSIBLE SKYDROL CONTAMINATION IAW AMM 31-41-01

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