# SDR SIMA202004231002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2020
- Submitted: April 23, 2020
- Operation: Air carrier
- Aircraft: [N679AE](https://openairdocs.org/aircraft/N679AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500814
- Aircraft time: 38,287 hours, 33,777 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Hose
- Condition: Disconnected
- Location: Ac Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA202004231002

## Discrepancy

DURING CLIMB THE AIRCRAFT FAILED TO PRESSURIZE. PACK 2 CLSD AND BLEED 2 CLSD AFTER TAKE-OFF -- CYCLED, THEM PACK2 & BLEED 2 WERE OPEN -- THEN ABOUT 5 SECONDS LATER PACK 1-2 CLOSED POSTED -- RAN QRH CHECKLIST: GOT PACK 1 BACK EVENTUALLY, BUT NOT PACK 2-C/A-FOUND HOSE DISCONECTED AT #2 PACK AT AT DUAL TEMP CONTROLL VALVE(LARGE HOSE FWD POSITION). REMOVED AND REPLACED HOSE . GROUND RAN OPS CHECK OF BOTH PACKS GOOD IAW ETN -EM-21-056 AND AMM P.T. 21--60-01

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