# SDR FDEA201804201068

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2018
- Submitted: May 18, 2018
- Operation: Air carrier
- Aircraft: [N584FE](https://openairdocs.org/aircraft/N584FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48436
- Aircraft time: 82,123 hours, 18,725 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Part number: TSCP7004E
- Part serial: P188
- Condition: Failed
- Location: Apu Bay
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201804201068

## Discrepancy

APU AUTOSHUT DOWN,  NOTICED SMOKE FROM THE SURGE VENTS. DISCHARGED THE NR 1 FIRE EXTINGUISHER FROM THE APU  FIRE PANEL. SMOKE IMMEDIATELY STOPPED.  REMOVED AND REPLACED THE APU ASSY IAW WIC 49T1001.

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