# SDR ASAA2017022019878

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2017
- Submitted: February 22, 2017
- Operation: Air carrier
- Aircraft: [N481AS](https://openairdocs.org/aircraft/N481AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44106
- Aircraft time: 6,213 hours, 2,078 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989085
- Part serial: 24801
- Condition: Failed
- Location: Right
- Part time: 6,236 hours, 2,084 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/ASAA2017022019878

## Discrepancy

ON RECALL, RIGHT PACK LIGHT ILLUMINATED, RESET WITH MASTER CAUTION.  ACFT GROUNDED.  REMOVED AND REPLACED THE RT TEMP CONTROL VALVE IAW AMM 21-51-10.  PERFORMED BITE TEST IAW AMM 21-61-00-700-806-002. TEST PASSED.

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