# SDR HNAA2020051800152

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2020
- Submitted: May 18, 2020
- Operation: Air carrier
- Aircraft: [N651AE](https://openairdocs.org/aircraft/N651AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145422
- Aircraft time: 44,765 hours, 41,120 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Valve
- Condition: Broken
- Location: Ac System
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2020051800152

## Discrepancy

A/C DID NOT PRESSURIZE  IN FLT RAN QRH AT 5000 MSL CABIN DIFF PRESSURE  WOULD NOT EXCEED  0.3PSI. FOUND GROUND CONNECTION VALVE MISSING. PERFORMED BOROSCOPE AND FOUND THE BROKEN VALVE. R&R'D THE GROUND CONNECTION VALVE IAW AMM 21-22-04-400-801-A. PERFORMED PRESSURIZATION TEST GOOD IAW AMM 21-31-00-700-801-A.  OK FOR SERVICE AT THIS TIME.

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