# SDR YENA2026080500653

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2026
- Submitted: August 6, 2026
- Operation: Air carrier
- Aircraft: [N536JB](https://openairdocs.org/aircraft/N536JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 01784
- Aircraft time: 86,871 hours, 31,459 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Cooling Fan
- Part number: 707239471
- Part serial: P3105
- Condition: Failed
- Location: Zone 100
- Part time: 970 hours, 1,081 cycles
- Stage of operation: DE
- 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/YENA2026080500653

## Discrepancy

FLT 944, BZN-JFK. OIL FUMES EVENT INITIALLY OCCURED AT FL 250 ON DECENT. ODORS DISSIPATED FUMES AGAIN OCCURED ON FINAL APPROACH AT 3000FT. DID NOT FOLLOW ISOLATION GUIDE; COMPLIED WITH INFORMATION NOTICE 2017-T015, STEPS 1 AND 2. IDENTIFIED ODOR TO BE APU OIL COOLING FAN. PERFORMED REMOVAL AND INSTALLATION OF APU OIL COOLING FAN PER AMM 49-52-51. OPS CHECK GOOD, NO LEAKS NOTED. DECONTAMINATION LEVEL A ACCOMPLISHED PER AMM 21-00-00-615-802-A. AIRCRAFT IS OK FOR SERVICE

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