# SDR ASAA2015121214197

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2015
- Submitted: December 14, 2015
- Operation: Air carrier
- Aircraft: [N538AS](https://openairdocs.org/aircraft/N538AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 41188
- Aircraft time: 14,170 hours, 4,161 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Controller
- Part number: 6228145
- Part serial: 62281407242
- Condition: Failed
- Location: Cabin Temp
- Part time: 14,172 hours, 4,162 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015121214197

## Discrepancy

LEFT PACK LIGHT ILLUMINATED ON APPROACH ABOUT 3500' ON RECALL.  ACFT GROUNDED. PERFORMED PACK/ZONE TEMPRATURE CONTROLLER BITE TEST.  NO FAULTS OR FAULT HISTORY LOGGED.  RAN LT PACK.  PACK OPERATES NORMALLY.  DUE TO HISTORY, R & R NR 1 PACK/ZONE TEMPERATURE CONTROLLER.  OPS CK GOOD REF AMM 21-61-20.

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