# SDR UPS06446525

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2006
- Submitted: March 29, 2006
- Operation: Air carrier
- Aircraft: N681UP
- Make and model: Boeing 747121
- Aircraft serial: 19661
- Aircraft time: 106,939 hours, 27,146 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 2280
- 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/UPS06446525

## Discrepancy

BS 2280 LBL 74-78 FLOORBEAM FOUND CORODED.  CORROSION BLEND OUT 0.062" BY 2" BY 2" EXCEED SRM 53-10-01 FIG 1 LIMITS, M/D - BS 2280 LBL 46 TO MOST LT O/B FLOORBEAM REPAIRED AS PER SRM 51-40-04 FIG 1.

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