# SDR UIEA2014090300420

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 2014
- Submitted: September 9, 2014
- Operation: Air carrier
- Aircraft: [N493MC](https://openairdocs.org/aircraft/N493MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29254
- Aircraft time: 65,822 hours, 10,438 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Condition: Malfunctioned
- Location: Apu Bay
- Stage of operation: IN
- How discovered: O
- Nature of condition: A, P
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2014090300420

## Discrepancy

PRIOR TO DEPARTURE FOUND SPARKS & SMOKE COMING FROM LT APU ACCESS DOOR AS WELL AS A HOLE ON SAME DOOR.  FLIGHT CREW REPORTED NO WARNING INDICATION IN COCKPIT.  APU SHUTDOWN & FIRE BOTTLE DISCHARGED.  PRELIMINARY INSPECTIONS IN WORK & HAVE REVEALED DAMAGE TO APU ACCESS DOORS, FUSELAGE SKIN, FASTENERS & EXHAUST DUCTING.  DAMAGE REPAIRED IAW WITH THE FOLLOWING ENGINEERING ORDERS 4453B026 REV 1, 4453B027 REV 2, 4453B025, 4452A208 REV 1 & 4453B024 REV 1.  APU & GENERATOR DEFERRED IAW MEL 242102A.

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