# SDR UIEA2020101402253

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2020
- Submitted: October 15, 2020
- Operation: Air carrier
- Aircraft: [N641GT](https://openairdocs.org/aircraft/N641GT), registered now
- Make and model: Boeing 767-38E
- Registry model: [Boeing 767-38E](https://openairdocs.org/model/boeing-767-38e) (OpenAirDocs)
- Aircraft serial: 25132
- Aircraft time: 88,868 hours, 25,259 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Valve
- Part number: 3987865
- Part serial: P636
- Condition: Malfunctioned
- Location: Cabin Temp
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020101402253

## Discrepancy

FWD CAB TEMP EICAS MESSAGE, COMPT TEMP INOPERABLE LIGHTS, PASSENGER, -200/-300, TRIM AIR MODULATING VALVE CLOSED.  TRANSFERRED TO MDDR 136025, IAW MEL 21-61-06-01-01A, CAT C.  REMOVED AND REPLACED FWD CABIN TRIM AIR VALVE ASSEMBLY, PER AMM 21-67-07.  OPERATIONS CHECKS GOOD.  THIS CLEARS MDDR 136025.  DISP SP AT 2017.

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