# SDR UIEA2025040100420

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 18, 2025
- Submitted: April 18, 2025
- Operation: Air carrier
- Aircraft: [N493MC](https://openairdocs.org/aircraft/N493MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29254
- Aircraft time: 106,450 hours, 17,195 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Condition: Corroded
- Location: Zone 100
- 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/UIEA2025040100420

## Discrepancy

KEEL BEAM PNL 191KK AFT SUPPORT BEAM FOUND CORROSION(<P>KEEL BEAM PNL 191KK APT CORROSION SUPPORT BEAM REPLACED AS PER SRM 51-10-02. NEW SUPPORT BEAM HOLES TRANSFER AS PER SRM 51-40-05. NEW SUPPORT BEAM INSTALLED AS PER SRM 51-40-02. NO FURTHER DEFECTS NOTED.</P>)

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