# SDR ASAA2014020706788

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2014
- Submitted: February 11, 2014
- Operation: Air carrier
- Aircraft: [N597AS](https://openairdocs.org/aircraft/N597AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35689
- Aircraft time: 22,361 hours, 6,990 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989083
- Part serial: 5257
- Condition: Malfunctioned
- Location: A/C Bay
- Part time: 41,125 hours, 17,370 cycles
- Stage of operation: TX
- 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/ASAA2014020706788

## Discrepancy

RT PACK LIGHT ILLUMINATES ON RECALL.  THE ASSOCIATED LIGHT EXTINGUISHES ON MASTER CAUTION.  ACFT GROUNDED. PERFORMED BITE CHECK, FOUND RT TCV INOPERATIVE.  R & R TCV REF AMM 21-51-10.  PERFORMED OPS/LEAK CHECK, OPS/LEAK CHECK GOOD. PERFORMED BITE CHECK, BITE CHECK CONFIRMS FAULT CORRECTED.

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