# SDR ASAA2020040232594

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2020
- Submitted: April 2, 2020
- Operation: Air carrier
- Aircraft: [N562AS](https://openairdocs.org/aircraft/N562AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35091
- Aircraft time: 51,817 hours, 15,349 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989083
- Part serial: 2757
- Condition: Failed
- Location: Ac Bay
- Part time: 71,965 hours, 33,118 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/ASAA2020040232594

## Discrepancy

PACK 1 LIGHT DURING MASTER CAUTION RECALL EXTINGUISHED ON RESET. GROUNDED - YES. REPLACED LH PACK TEMP CONTROL VLV REF B737-800 AMM 21-51-10 OPS CK NORMAL THIS CLEARS MEL 21-32B PLACARDS REMOVED.

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