# SDR ASAA2013061195074

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 11, 2013
- Submitted: June 15, 2013
- Operation: Air carrier
- Aircraft: [N592AS](https://openairdocs.org/aircraft/N592AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35190
- Aircraft time: 20,683 hours, 6,491 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Control Valve
- Part number: 3989083
- Part serial: 1609
- Condition: Malfunctioned
- Location: A/C Bay
- Part time: 72,107 hours, 34,309 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/ASAA2013061195074

## Discrepancy

CONT CAB ZONE TEMP LIGHT COMES ON DURING MASTER CAUTION RECALL.  ACFT GROUNDED. CONFIRMED FAULT.   BITE TEST ON LT CONTROLLER ZONE TEMP CONTROLLER SHOWS LT TCV FAULT.  R & R LT PACK TCV (V139) REF AMM TASK 21-61-21, OPS CK NORMAL.

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