# SDR UIEA2021102602289

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2021
- Submitted: October 29, 2021
- Operation: Air carrier
- Aircraft: [N1499A](https://openairdocs.org/aircraft/N1499A), registered now
- Make and model: Boeing 767328
- Aircraft serial: 27428
- System (JASC): [2161 · Cabin Temperature Controller](https://openairdocs.org/jasc/2161)
- Part: Relay
- Part number: BACR13CG2AB
- Part serial: NSN
- Condition: None
- Stage of operation: TX
- 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/UIEA2021102602289

## Discrepancy

REPEAT WRITE-UP. AUTOMATIC FLIGHT DECK TEMPERATURE CONTROL OPERATES NORMALLY ON THE GROUND BUT UNCONTROLLABLE IN FLIGHT, EVEN WITH TRIM VALVE SET MANUALLY TO FULL COLD. FLIGHT DECK STAYS VERY WARM.(<P>PERFORMED FIM 21-61 FT 917. FIM LEAD TO REPLACE RELAY K238 IN P37 PANEL IAW SWPM 20-81-22. OPS CHECK GOOD AT THIS TIME.</P>)

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