# SDR ASAA2015031510966

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2015
- Submitted: March 17, 2015
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 23,635 hours, 7,048 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Valve
- Part number: 3989083
- Part serial: 2759
- Condition: Malfunctioned
- Location: Rt A/C Pack
- Part time: 54,938 hours, 28,554 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015031510966

## Discrepancy

RIGHT PACK LIGHT ILLUMINATED DURING RECALL AND RESETS.  ACFT GROUNDED.  FOUND TEMPERATURE CONTROL VALVE FAILED BITE CHECK.  REPLACED TEMPERATURE CONTROL VALVE ON RT PACK IAW MM 21-51-10.

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