# SDR UIEA2023052200482

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2023
- Submitted: May 22, 2023
- 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: 93,848 hours, 16,031 cycles
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2023052200482

## Discrepancy

CORROSION DAMAGE ON UPPER CHORD OF MAIN DECK FLOOR BEAM AT STA 1760, BETWEEN RBL 45.50 AND RBL 55(<P>1) REPAIR DAMAGE AREA IAW EI T2023A53M-919 REV 0 AND SRM 53-00-51-2R-3 REPAIR 3 REV 97 AND BOEING DWG 65B38088 SH 27 REV -, 65B38088 SH 28 REV -, 457U4040 SH 12 REV -, 457U4040 SH 14 REV A, 457U4040 SH 4 REV B. 2) ACCOMPLISHED EI T2023A53M-919 REV 1. 3) CONDITIONED CHECK NORMAL AND JOB COMPLETED</P>)

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