# SDR ASAA2019101193983

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2019
- Submitted: October 11, 2019
- Operation: Air carrier
- Aircraft: [N562AS](https://openairdocs.org/aircraft/N562AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35091
- Aircraft time: 49,855 hours, 14,840 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989085
- Part serial: 18303
- Condition: Failed
- Location: Rt A/C Pack
- Part time: 24,366 hours, 7,584 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/ASAA2019101193983

## Discrepancy

RIGHT PACK LIGHT CAME ON DURING RECALL CHECK. LIGHT DOES GO OUT ON PUSH TO RESET. GROUNDED - YES. PZTC BITE SHOWS "TCV THIS PACK" REF B737-800 AMM 21-61-00. REPLACED THE RIGHT PACK TCV PER AMM 21-51-10. LK AND OPS CK GOOD. ETOPS GROUND VERIFICATION SUCCESSFUL.

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