# SDR MYWA120030

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2012
- Submitted: March 8, 2012
- Operation: Air carrier
- Aircraft: [N734MA](https://openairdocs.org/aircraft/N734MA), registered now
- Make and model: Boeing 737-81Q
- Registry model: [Boeing 737-81Q](https://openairdocs.org/model/boeing-737-81q) (OpenAirDocs)
- Aircraft serial: 30618
- Aircraft time: 29,853 hours, 10,830 cycles
- System (JASC): [2162 · Cabin Temperature Indicator](https://openairdocs.org/jasc/2162)
- Part: Warning System
- Condition: Intermittent
- Location: Cockpit
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MYWA120030

## Discrepancy

ETOPS SIGNIFICANT SYSTEM:  ON RECALL ALL THREE ZONE TEMP LTS ILLUMINATED.  PERFORMED PACK/ZONE TEMP CONT BITE TEST IAW AMM 21-61-00-700-806-002.  TRIM VALVE FAULT STORED.  PERFORMED T/S PER FIM 21-62-TASK 848.  FAULT INTERMITTENT AND CLEARED.  PERFORMED BITE TEST.  BITE TEST PASSED IAW AMM 21-62-00-700-806-002, NO FAULTS.

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