# SDR ASAA11510805

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2011
- Submitted: December 20, 2011
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 19,848 hours, 6,030 cycles
- System (JASC): [2161 · Cabin Temperature Controller](https://openairdocs.org/jasc/2161)
- Part: Controller
- Condition: Malfunctioned
- Location: Ac Bay
- 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/ASAA11510805

## Discrepancy

PACK LIGHT ILLUMINATED DURING RECALL DURING LANDING CHECK.  PERFORMED PACK ZONE TEMP BITE CHECK ON NR 1 & NR 2 ZONE TEMP CONTROLLERS PER AMM 21 61 00 700 806 002 NR 1 TEMP CONTROLLER CHECKS GOOD NR 2 TEMP CONTROLLER HAD A " RAM AIR ACT" FAULT.  RESET FAULTS ON NR 2 TEMP CONTROLLER PERFORMED BITE TEST ON NR 2 TEMP CONTROLLER CHECKS GOOD GND VERIFICATION CHECKS GOOD.

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