# SDR ASAA2015051011677

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2015
- Submitted: May 12, 2015
- Operation: Air carrier
- Aircraft: [N413AS](https://openairdocs.org/aircraft/N413AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35205
- Aircraft time: 8,452 hours, 2,717 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Controller
- Part number: 6228145
- Part serial: 093C0938
- Condition: Faulted
- Location: Cabin Temp
- Part time: 54,358 hours, 28,106 cycles
- Stage of operation: CR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015051011677

## Discrepancy

AFT ZONE TEMP LIGHT ILLUNINATED IN AT AT FL340.  ACFT GROUNDED. PERFORMED BITE CHECK OF NR 2 PACK/ZONE TEMP CONTROLLER, FAULTED STDBY CONTROLLER FAULT.  DUE TO CONTROLLER HISTORY, REPLACED NR 2 PACK/ZONE TEMP CONTROLLER IAW 21-61-20-000-801/400-801, OPS CHECK NORMAL IAW SAME.

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