# SDR UIEA2021032900735

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2021
- Submitted: March 29, 2021
- Operation: Air carrier
- Aircraft: [N1487A](https://openairdocs.org/aircraft/N1487A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 28865
- Aircraft time: 89,582 hours, 18,636 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Valve
- Part number: 3937865
- Part serial: 6213
- Condition: Faulted
- Location: Trim Air
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021032900735

## Discrepancy

FWD CABIN TEMP ADVISORY MSG ON EICAS(<P>TRSNSFERRED TO MDDR 144401 IAW MEL 21-61-04-02, CAT C, DATED 05APR21. C/B PULLED AND COLLARED TRIM AIR VALVE LOCKED OUT, MCC NOTIFIED.</P><P>27 MAR - LP 1254532 ITEM 3 - ONT - PERFORMED FIM 21-61 FT 803 AND FOUND FWD TRIM VALVE AT FAULT, REMOVED AND REPLACED RELAY K239 (P37) PER SWPM 20-81-22. NO FIX. REMOVED AND REPLACED FWD TRIM VALVE IAW AMM 21-61-07. OPS CHECK GOOD. THIS CLEARS DMI 144401. PLACARD REMOVED. MCC NOTIFIED.</P>)

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