# SDR UIEA2015062300319

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2015
- Submitted: June 23, 2015
- Operation: Air carrier
- Aircraft: [N412MC](https://openairdocs.org/aircraft/N412MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 30559
- Aircraft time: 64,251 hours, 9,986 cycles
- System (JASC): [2163 · Cabin Temperature Sensor](https://openairdocs.org/jasc/2163)
- Part: Sensor
- Part number: 7242495
- Part serial: 99036426
- Condition: Inoperative
- Location: Crew Rest
- 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/UIEA2015062300319

## Discrepancy

CREW REST AREA TEMP UNCONTROLLABLE, GOES BETWEEN EXTREME HOT & COLD.  AFT BULKHEAD HOT TO TOUCH.  FOUND ZONE TEMP SENSOR FAN NOT WORKING.  R & R, OPERATIONS CHECKED IAW AMM 21-61-03, ALL NORMAL.

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