# SDR ASAA12511576

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2012
- Submitted: May 23, 2012
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 21,565 hours, 6,543 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989083
- Part serial: 1512
- Condition: Malfunctioned
- Location: Ac Bay
- Part time: 61,692 hours, 32,435 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12511576

## Discrepancy

LEFT PACK LIGHT ON DURING RECALL RESET WITH MASTER CAUTION RESET.  ACFT GROUNDED.  R & R TEMP CONTROL VALVE IAW MM 21-51-10-000-801.  LEAK AND OPS CHECKED GOOD.

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