# SDR ASAA2016092818142

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2016
- Submitted: September 30, 2016
- Operation: Air carrier
- Aircraft: [N585AS](https://openairdocs.org/aircraft/N585AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35683
- Aircraft time: 34,850 hours, 10,460 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989083
- Part serial: 10459
- Condition: Failed
- Location: Ac Bay
- Part time: 30,172 hours, 9,948 cycles
- Stage of operation: NR
- 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/ASAA2016092818142

## Discrepancy

LEFT PACK LIGHT ILLUMINATES DURING RECALL, EXTINGUISHES WITH RESET.  GROUNDED, YES.  LEFT PACK LOGGED THIS PACK TCV.  INITIAL EVALUATION REVEALED NO DEFECTS.  REMOVED & REPLACED LEFT PACK TCV.  OPS CHECK NORMAL, REF AMM 21-51-10.

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