# SDR UIEA2010083100152

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2010
- Submitted: August 31, 2010
- Operation: Air carrier
- Aircraft: [N412MC](https://openairdocs.org/aircraft/N412MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 30559
- Aircraft time: 46,664 hours, 6,949 cycles
- Engine: Ge CF680
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Cracked
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2010083100152

## Discrepancy

DURING A-CHECK, GOUGES AND A CRACK WERE FOUND IN THE FUSELAGE BELLY SKIN BETWEEN BS 2585 AND 2587 AND S-47L AND -47R. REFER TO FIG 1 FOR DAMAGE LOCATION AND DESCRIPTION. (THE FUSELAGE SKIN AT THE DAMAGE LOCATION IF MADE FROM A 0.050 INCH THICK SKIN WITH A 0.040 INCH THICK BONDED DOUBLER, BOTH MADE FROM 7075-T6 ALUMINUM IAW SRM 53-80-01, FIG 1, ITEM 6. PART 1 OF THIS EO REMOVES THE DAMAGE AND INSTALLED A REPAIR IAW SRM 53-00-01, FIG 201, REPAIR 1. PART 2 OF THIS EO ACCOMPLISHES THE REPETITIVE INSPECTIONS REQUIRED FOR THIS CATEGORY B REPAIR.)

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