# SDR UIEA2020080731683

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2020
- Submitted: August 7, 2020
- Operation: Air carrier
- Aircraft: [N1373A](https://openairdocs.org/aircraft/N1373A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 27205
- Aircraft time: 102,224 hours, 21,548 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Modulating Valve
- Part number: 3987865
- Part serial: 2171
- Condition: Malfunctioned
- Location: Cabin Temp
- Stage of operation: IN
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020080731683

## Discrepancy

AFTER ENGINE START FWD CABIN TEMP EICAS MESSAGE.   T/S IAW FIM 21-60 F/T 806 TO BOX 44.  REMOVED AND REPLACED FWD TRIM AIR  MODULATION VALVE IAW AMM 21-61-07, OPS CHECKED NORMAL.

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