# SDR UIEA2017032700410

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2017
- Submitted: March 27, 2017
- Operation: Air carrier
- Aircraft: [N499MC](https://openairdocs.org/aircraft/N499MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29260
- Aircraft time: 70,623 hours, 11,905 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 65B1604630
- Condition: Corroded
- 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/UIEA2017032700410

## Discrepancy

FOUND FLOORBEAM UPPER CHORD CORROSION AT STA 1120 RBL 107~109. REMOVE DAMAGED PART IAW SRM 51-40-02 REV 79 & 2. INSTALL NEW PART IAW SRM 51-40-02 REV 79 AND DWG 65B16046 SH3 REV B & 3. JOB COMPLETED AND CONDITION CHECK NORMAL.

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