# SDR UPS01435421

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2001
- Submitted: March 26, 2001
- Operation: Air carrier
- Aircraft: N683UP
- Make and model: Boeing 747121
- Aircraft serial: 20353
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Cargo Bay
- 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/UPS01435421

## Discrepancy

INSPECTION TYPE:C6 FWD CARGO COMPT BS 800 LBL 40 FLOORBEAM UPPER SURFACE ANCHOR NUT ATTACH AREA FOUND CORRODED AS MARKED.   FLOORBEAMS REPAIRED AS PER 51-40-04 FIG 2. BLENDED OUT CORROSION. DEPTH 0.030 INCH , WIDTH 1 INCH , LENGTH 2 INCHES.

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