# SDR ASAA2020100533284

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2020
- Submitted: October 7, 2020
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 45,066 hours, 13,744 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989083
- Part serial: 19340
- Condition: Inoperative
- Location: A/C Pack Temp
- Part time: 6,716 hours, 2,547 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/ASAA2020100533284

## Discrepancy

MASTER CAUTION RECALL, RIGHT PACK LIGHT ILLUMINATED AND RESET WITH MASTER CAUTION RECALL.  GROUNDED-YES.  REMOVED AND REPLACED RT PACK TEMP CONTROL VALVE.  LEAK AND OPS CK NORMAL, REF B737-800 AMM 21-51-10.  GROUND VERIFICATION NORMAL.

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