# SDR IPXA2025091962906

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2025
- Submitted: September 19, 2025
- Operation: Air carrier
- Aircraft: [N440UP](https://openairdocs.org/aircraft/N440UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25471
- Aircraft time: 31,056 hours, 20,494 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Condition: Odor
- Location: Left
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2025091962906

## Discrepancy

LEFT PACK MODERATE BURNT ODOR RIGHT PACK MODERATE ODOR NOT €ŒBURNT€? SOME EYE IRRITATION AWARENESS BOTH CA AND F/O T/S AND FOUND LEFT PACK TO BE CAUSE OF SMELL, SUSPECT ACM TO BE BURNING BEARINGS. DMI CONTINUES, PLACED ACM AND SEALS ON ORDER. IAW FIM  21-20-02-00

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