# SDR DALA2026010200036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 1, 2026
- Submitted: January 2, 2026
- Operation: Air carrier
- Aircraft: [N136DQ](https://openairdocs.org/aircraft/N136DQ), registered now
- Make and model: Airbus BD-500-1A10
- Registry model: [Airbus BD-500-1A10](https://openairdocs.org/model/airbus-canada-ltd-ptnrsp-bd-500-1a10) (OpenAirDocs)
- Aircraft serial: 50055
- Aircraft time: 14,387 hours, 6,569 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Valve
- Condition: Faulted
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026010200036

## Discrepancy

AFTER ENGINE START, TRIM AIR WAS VERY HOT IN CKPT AND AFT DUCTS. 188+F IN CKPT, 184+F AFT. CYCLED TRIM AIR SWITCH AND FUNCTIONED NORMALLY. AT CRUISE, FA REPORTED SMELLING ELECTRICAL SMELL AT L1 DOOR. POSSIBLE SMELL AROUND 2L DOOR. ODOR MAY BE ASSOCIATED WITH THE TRIM AIR.   REPLACED TRIM AIR PRESS. REG. VALVE (V48) PER A220 AMP 21-61. (LP 8061456)

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