# SDR UIEA2012110900520

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 8, 2012
- Submitted: November 12, 2012
- Operation: Air carrier
- Aircraft: [N409MC](https://openairdocs.org/aircraft/N409MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 30558
- System (JASC): [7160 · Engine Air Intake System](https://openairdocs.org/jasc/7160)
- Part: Nose Cowl
- Part number: 224210157301
- Part serial: 2439001
- Condition: Deformed
- Location: Nr 4 Nacelle
- Stage of operation: CL
- How discovered: O
- Nature of condition: C
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2012110900520

## Discrepancy

AFTER TAKEOFF AT AROUND 1000 FT AGL, LARGE BIRD STRIKE ON NR 4 ENGINE NACELLE L/E.  FOUND NOSE COWL L/E 2 O'CLOCK POSITION DEFORMED.  PERFORM NR 4 ENGINE BOROSCOPE INSPECTION ON HPC STAGE 1 AND 12.  BIRDSTRIKE CONDITIONAL INSPECTION CARRIED OUT IAW AMM 05-51-14-202-001.  REPLACED NR 4 ENGINE NOSE COWL IAW AMM 71-11-01.  BOROSCOPE INSPECTION CARRIED OUT ON HPC STAGE 1 AND 12, IAW AMM 72-00-00-206-001.  NO DAMAGE NOTED.

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