# SDR UIEA2023052200492

- 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): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- 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/UIEA2023052200492

## Discrepancy

FOUND M/D CGO FLOOR STRUCTURE CORROSION AT STA 480 BETWEEN 55.20 AND LBL 80.00(<P>1) REMOVE SUPPORT ANGLE IAW SRM 51-40-02-0G-0 REV 97. 2) FABRICATE SUPPORT ANGLE IAW EI T2023A53M-1033 REV 20, T2023A53M-1034 REV 0, T2023P53M-1023 & T2023P53M-1024 REV 0. 3) REPAIR DAMAGE AREA IAW EI T2023A53M-921 REV 1, SRM 53-00-51-2R-3 REV 97, BOEING DWG 284U1103 SH 14 REV -, 284U1103 SH 15 REV -, 284U1120 SH 6 REV -, 141U5348 SH 1 REV E. 4) PERFORM EI T2023A53M-921 REV 2 SEQUENCE C. 5) ACCOMPLISHED EI T2023A53M-921 REV 3, T2023A53M-1433 & T2023A53M-1034 REV 1 6) JOB COMPLETED AND CONDITION CHECK NORMAL</P>)

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