# SDR DALA2026041302319

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2026
- Submitted: April 14, 2026
- Operation: Air carrier
- Aircraft: [N943AT](https://openairdocs.org/aircraft/N943AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55006
- Aircraft time: 68,104 hours, 49,353 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Condition: Contaminated
- Location: Left
- Stage of operation: TX
- How discovered: O
- Nature of condition: C, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026041302319

## Discrepancy

FUME/SMKE - ON TAXI IN WITH RT PACK ON, WET SOCK SMELL WITH VISIBLE FOG/SMOKE. CORRECTIVE ACTION: FOUND APU WITH NO OIL IN OIL TANK AND EXTENSIVE OIL CONTAMINATION IN BLEED DUCT. APU CHANGE COMPLETED AND BLEED DUCTS CLEANED. STILL HAVE ODOR AND HAZE ON APU BLEED. FOUND LT ACM AND BOTH PACK PRIMARY AND SECONDARY HEAT EXCHANGERS CONTAMINATED WITH OIL. REPLACED LT ACM AND PACK HEAT EXCHANGERS.(8145958)(AIRCRAFT GROUNDED)

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