# SDR SIMA2012026001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 2012
- Submitted: January 26, 2012
- Operation: Air carrier
- Aircraft: [N663AR](https://openairdocs.org/aircraft/N663AR), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145182
- Aircraft time: 29,170 hours, 27,075 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Switch
- Part number: 8152915
- Part serial: 4859
- Condition: Inoperative
- Location: Ac Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA2012026001

## Discrepancy

ON FLIGHT I 2807 THE CREW REPORTED AN INTERMITTANT AND REPEATED PACK 1 OVER TEMPERATIURE MESSAGE WHILE CLIMBING THRU 15000.  THE CREW DECLARED AN EMERGECNY AND ELECTED TO RETURN TO DFW.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  INSPECTED NR 1 PACK SYSTEM FOR LEAKS AND NONE NOTED.  REMOVED AND REPLACED THE PACK OVERTEMP SWITCH IAW 21-51-08.  THE OPERATIONAL CHECK WAS GOOD.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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