# SDR UPS03440245

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2003
- Submitted: February 28, 2003
- Operation: Air carrier
- Aircraft: N522UP
- Make and model: Boeing 747-200
- Registry model: [Boeing 747-200](https://openairdocs.org/model/boeing-747-200) (OpenAirDocs)
- Aircraft serial: 21936
- Aircraft time: 65,143 hours, 15,580 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Angle
- Condition: Corroded
- Location: Lt Keelbeam Box
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS03440245

## Discrepancy

INSPECTION TYPE: C FX,  KEELBEAM BOX INTERIOR LONGER FRAME FOUND HEAVY CORROSION AT LT SIDE STA 1465 TO STA 1475 LBL 6 TO LBL 8.  REPAIRED ANGLE FABRICATED AS PER HX RS R53-49-34970 AND EA 747-53-20123.  BLEND OUT 0.079 X 2.4 X 4 INCH.

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