# SDR SIMA20190529001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2019
- Submitted: May 30, 2019
- Operation: Air carrier
- Aircraft: [N935AE](https://openairdocs.org/aircraft/N935AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500920
- Aircraft time: 34,274 hours, 29,400 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Pipe
- Condition: Defective
- Location: Ac Bay
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20190529001

## Discrepancy

RECE'VED PACK 1 VLV CLOSED AND BLEED 1 CLOSED ON TAKE OFF. RECYCLED 4 TIMES + FOLLOWED QRH AND COULD NOT GET THE PACK TO STAY ON. C/A-DEFERRED PER MEL 21-28. AUTH # 050962D-C. MEL HAS TO BE CHANGE FROM 21-28 TO 21-30, DUE TO WRONG MEL ISSUE ON "N" REG. ITEM DEFERRED PER MEL # 21-30 AUTH # 050962D-C AS PER MOC # 680993.  REMOVED AND REPLACED PIPE, COUPLINGS, AND CLAPS FROM DUAL TEMPERATURE CONTROL VALVE TO HEAT EXCHANGER IAW AMM 21-51-02, OPS CHK GOOD, LEAK CHK GOOD. MEL RESTORED.

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