# SDR ASAA2015042511517

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2015
- Submitted: April 29, 2015
- Operation: Air carrier
- Aircraft: [N402AS](https://openairdocs.org/aircraft/N402AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41189
- Aircraft time: 9,610 hours, 3,098 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Valve
- Part number: 3989083
- Part serial: 11208
- Condition: Failed
- Location: A/C Bay
- Part time: 25,095 hours, 7,938 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015042511517

## Discrepancy

F/A REPORTS HOT TEMPERATURE SPOT BETWEEN ROW 6 AND 13.  ACFT GROUNDED. PERFORMED CABIN TEMPERATURE CONTROLLER BITE CKS. REF FIM 21-61TASK 801. FOUND FAULT ON FWD ZONE, TRIM AIR MOD VALVE. REPLACED FWD ZONE, TRIM AIR MOD VALVE REF. AMMM 21-61-21. OPS CKS NORMAL, LEAK CKS GOOD. VERIFIED NO FAULT ON BITE CKS. NO HISTORY 30 DAYS.

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