# SDR UPS07449377

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2007
- Submitted: March 12, 2007
- Operation: Air carrier
- Aircraft: N683UP
- Make and model: Boeing 747121
- Aircraft serial: 20353
- Aircraft time: 90,184 hours, 22,066 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 760
- 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/UPS07449377

## Discrepancy

INSPECTION TYPE:C M/D - LBL 75-97 BS 760 FLOORBEAM CORRODED.  CORROSION BLEND OUT 0.044" X 1" X 2" EXCEED SRM 53-10-01 FIG 1 LIMITS.  M/D BS 760 LBL 67 TO MOST LEFT O/B FLOORBEAM REPAIRED AS PER SRM 51-40-04 FIG 3.

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