# SDR UPS01435720

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2001
- Submitted: April 27, 2001
- Operation: Air carrier
- Aircraft: N680UP
- Make and model: Boeing 747-SR-46
- Registry model: [Boeing 747-SR-46](https://openairdocs.org/model/boeing-747-sr-46) (OpenAirDocs)
- Aircraft serial: 20923
- Aircraft time: 60,103 hours, 32,223 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Cracked
- 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/UPS01435720

## Discrepancy

INSPECTION TYPE: C3  UPPER DECK FLOORBEAM UPPER CHORD AT BS 340 RBL 44-55 FOUND THREE EACH FLOOR PANEL ATTACHMENT HOLES CRACKED AS MARKED. REPAIRED FLOORBEAM UPPER HCORD (AFT SIDE) CRACKED HOLES AS PER SB 747-53A2431 FIG.9.

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