# SDR SIMA2012026003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2012
- Submitted: January 26, 2012
- Operation: Air carrier
- Aircraft: [N939AE](https://openairdocs.org/aircraft/N939AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500923
- Aircraft time: 17,381 hours, 14,786 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Thermostat
- Condition: Defective
- Location: Bleed Air Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA2012026003

## Discrepancy

ON FLIGHT 4361 THE CREW REPORTED THAT ON CLIMBOUT RECEIVED A NR 1 BLEED OVER TEMPERATURE MESSAGE SHORTLY AFTER AIRCRAFT ENTERED ICING CONDITION VERIFIED THAT TEMPERATURE WAS HIGH ON BLEED TEMP INDICATION.  WARNING MESSAGE WENT OUT WHEN AIRCRAFT WAS OUT OF ICING CONDITIONS TEMP WAS NORMAL WHEN NOT IN ICING.  ATTEMPED AOM 1 PROCEDURE HOWEVER BLEED OVERTEMP WENT OUT.  MONITORED TEMPERATURE ON MFDECS BLEED TEMP INDICATION ON REMAINING FLIGHT.  ALL WAS NORMAL UNTIL ICING IS ENCOURTERED.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  REMOVED AND REPLACED THE NR 1 FAN AIR CONTROL THERMOSTAT IAW EMB 145 AMM 36-11-06.  THE OPERATIONAL CHECK WAS GOOD.  REFERENCE TO NRWC# 939-ORD-00722.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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