# SDR UIEA2021082401862

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2021
- Submitted: August 27, 2021
- Operation: Air carrier
- Aircraft: [N1997A](https://openairdocs.org/aircraft/N1997A), registered now
- Make and model: Boeing 767-33A
- Registry model: [Boeing 767-33A](https://openairdocs.org/model/boeing-767-33a) (OpenAirDocs)
- Aircraft serial: 27310
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Control Valve
- Part number: 3987505
- Part serial: 3975
- Condition: Faulted
- Location: Cabin Temp
- Stage of operation: CR
- 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/UIEA2021082401862

## Discrepancy

AFT CABIN COMPARTMENT SHOWS 7D EVENT THOUGH AFT CABIN TEMPERATURE CONTROLLER IS SET TO WARM DURING CRUISE FLIGHT(<P>PERFORMED BITE CHECK ON DECK SYSTEM IAW FIM. REMOVED AND REPLACED LEFT PACK TEMP CTRL VALVE IAW AMM 21-51-12. OPS CK GOOD AT THIS TIME.</P>)

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