# SDR UPS06447559

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2006
- Submitted: August 4, 2006
- Operation: Air carrier
- Aircraft: [N676UP](https://openairdocs.org/aircraft/N676UP), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20101
- Aircraft time: 83,907 hours, 23,132 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- 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/UPS06447559

## Discrepancy

INSPECTION TYPE:C U/D RIGHT BS 50 UPPER DECK FLOORBEAM AFT FLANGE 2EA FASTENER HOLE FOUND CORROSION AT RBL16 AND RBL 27. 0.310" & 0.326" OVERSIZED.  FASTENER HOLE OVERSIZED TO 0.326" AT RBL 16 & 0.310" AT RBL 27 AS PER SRM 51-30-05 AS PER UPS EO B747-5310-23043 APP D WITHIN THE LIMITATION.

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