# SDR YENA2025082500876

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 2025
- Submitted: August 25, 2025
- Operation: Air carrier
- Aircraft: [N991JT](https://openairdocs.org/aircraft/N991JT), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 07994
- Aircraft time: 30,722 hours, 6,074 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Apu
- Condition: Odor
- Location: Zone 100
- 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/YENA2025082500876

## Discrepancy

FLT 101, FLL-FLL. APU BLEED ON, SMELLED BURNING.  ACCOMPLISHED INFO NOTICE 2017-T015L PERFORMED LVL A ECS DECON. AIR QUALITY CHK GOOD. INSP FUSELAGE & APU NO ACTIVE LEAKS NOTED. APU WILL BE PLACED ON MEL. FOUND IN DIRTY CONDITION. REFER TO L/P 4291003-2..ACCOMPLSIHED ENG2 IDG LEAK AND OPS CHKS PER AMM 24-21-00 ALL CHKS GOOD.

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