# SDR YENA2026021700206

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2026
- Submitted: February 17, 2026
- Operation: Air carrier
- Aircraft: [N3289J](https://openairdocs.org/aircraft/N3289J), registered now
- Make and model: Airbus BD-500-1A11
- Registry model: [Airbus BD-500-1A11](https://openairdocs.org/model/airbus-canada-lp-bd-500-1a11) (OpenAirDocs)
- Aircraft serial: 55392
- Aircraft time: 368 hours, 194 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Condition: Odor
- Location: Zone 100
- Stage of operation: TX
- 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/YENA2026021700206

## Discrepancy

FLT 994, DEN-BOS.  DURING TAXI IN FLIGHT CREW AND CABIN CREW SMELLED ELECTRICAL/METALLIC ODOR. THIS WAS SHORTLY AFTER APU START UP. NO ABNORMAL INDICATIONS ASSOCIATED. ( AUXILIARY POWER UNIT (APU) SYSTEM ).   FAULT ISOLATION PROCEDURES J21-22-00. INSPECTED APU COMPARTMENT . NO OILS/ FLUID FOUND . INSPECTED AIR CONDITIONING BAY AREA . NO OIL / FLUID NOTED . RAN APU FOR ALMOST 2 HRS . NO ODOR / ELECTRICAL FUME NOTED IN THE CABIN AND GALLEY AREAS . MDDR CLEARED . MX4 UPDATED PLACARD REMOVED . MCC NOTIFIED.

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