# SDR UIEA200200033

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 2002
- Operation: Air carrier
- Aircraft: [N517MC](https://openairdocs.org/aircraft/N517MC), registered now
- Make and model: Boeing 747243B
- Aircraft serial: 23300
- Engine: Ge CF34*
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Beam
- Part number: 65B150745
- Condition: Cracked
- Location: Bs1344,1354
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200200033

## Discrepancy

DURING CURRENT (C) CHECK AT SIAEC FOUND LOWER KEEL BEAM CHORD INBOARD VERTICAL FLANGE CRACKED 10 INCH FROM BS 1344 TO 1354 AT LBL 9.0.  LEVEL 1 CORROSION  PRESENT IN CRACKED AREA OF VERTICAL WEB THROUGH ABOUT 50 PERCENT OF THE ORIGINAL THICKNESS.  CRACKED/ CORRODED AREA TRIMMED AWAY.  AREA VISUALLY INSPECTED FOR ADDITIONAL CRACKS/CORROSION.  NONE FOUND.  FABRICATED FILLER AND REPAIR DOUBLER.  INSTALLED IAW SRM.

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