# SDR UPS02439223

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2002
- Submitted: August 30, 2002
- Operation: Air carrier
- Aircraft: [N526UP](https://openairdocs.org/aircraft/N526UP), registered now
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21937
- Aircraft time: 79,834 hours, 15,049 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Condition: Corroded
- Location: Fuselage
- 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/UPS02439223

## Discrepancy

INSPECTION TYPE:C, FX-KEEL BEAM BOX INTERIOR RIGHT SIDE LOWER CHORD FOUND CORROSION AT STA 1460-1468 RBL 6 TO RBL 8.  CORROSION REMOVED IAW SRM 51-10-01 CORROSION BLEND OUT EXCEEDS SRM 53-10-01 LIMITS, REPAIRED IAW HX RS R53-49-34878.

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