# SDR ASAA11510771

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2011
- Submitted: December 12, 2011
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 17,795 hours, 5,427 cycles
- System (JASC): [2161 · Cabin Temperature Controller](https://openairdocs.org/jasc/2161)
- Part: Controller
- Part number: 6228145
- Part serial: 62281404068
- Condition: Faulty
- Location: E&E Bay
- Part time: 17,796 hours, 5,429 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA11510771

## Discrepancy

ON RECALL OF MASTER CAUTION "SIX PACK" RIGHT PACK LIGHT ILLUMINATED.  CREW REPORTS LIGHT GOES OUT W/MASTER CAUTION RESET.  FOUND NR 2 CTRLR TO HAVE A CONTROLLER FAULT OF PACK/ZONE (IN BIT TEST).  REPLACED NR 2 TEMP CTRLR.  OPS CHECK GOOD.

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