# SDR ASAA2014082708971

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2014
- Submitted: August 29, 2014
- Operation: Air carrier
- Aircraft: [N560AS](https://openairdocs.org/aircraft/N560AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35179
- Aircraft time: 30,820 hours, 9,405 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 3989083
- Part serial: 2513
- Condition: Faulted
- Location: Lt A/C Pack
- Part time: 60,190 hours, 28,095 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/ASAA2014082708971

## Discrepancy

LEFT PACK LIGHT ILLUMINATED ON RECALL, RESETS IAW QRH CHECKLIST.  ACFT GROUNDED. PERFORMED BITE CK FOUND LT CONTROLLER TCV VALVE FAULTING.  REPLACED LT TCV IAW REF 21-51-10 MM.  BITE CHECKED FAULT CLEARED, LEAK CHECKED GOOD.

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