# SDR DXTA2026081209211

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2026
- Submitted: August 12, 2026
- Operation: Air carrier
- Aircraft: [N788QS](https://openairdocs.org/aircraft/N788QS), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20607
- Aircraft time: 10,834 hours, 6,305 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Acm
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026081209211

## Discrepancy

ON CLIMB OUT, NOTICED A WHISTLING NOISE, FOLLOWED BY A UNDESCRIBABLE ODOR. FOLLOWED BY HOT AIR COMING OUT OF THE AIR-CONDITIONING. ON THE ECS PAGE THE ONLY ABNORMALITY WAS THE SUPPLY LINES WERE 61 AND 65 DEGREES.  REMOVED FAULTY ACM P/N OFF 3471A020000 S/N OFF 00321 AND INSTALLED REPAIRED ACM P/N ON 3471A020000 S/N ON 00822. OPS AND LEAK CHECKS GOOD. NO FURTHER DISCREPANCIES NOTED AT THIS TIME. WORK PERFORMED IAW AMM 21-52-13

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