# SDR ASAA1058691

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 2010
- Submitted: December 28, 2010
- Operation: Air carrier
- Aircraft: [N568AS](https://openairdocs.org/aircraft/N568AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35183
- Aircraft time: 15,000 hours, 4,848 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989083
- Part serial: 9171
- Condition: Failed
- Location: Ac Pack
- Part time: 15,022 hours, 4,853 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/ASAA1058691

## Discrepancy

RIGHT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL.  LIGHT EXTINGUISHES WITH MASTER CAUTION RESET.  REMOVED & REPLACED RIGHT PACK TEMP CONTROL VALVE.  REF AMM 21 51 10 000 801 & 21 51 10 400 801 OPS CHECK GOOD.

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