# SDR UPS06445936

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2006
- Submitted: January 13, 2006
- Operation: Air carrier
- Aircraft: N520UP
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21943
- Aircraft time: 80,484 hours, 17,793 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 360
- 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/UPS06445936

## Discrepancy

INSPECTION TYPE:C COCKPIT BS 360 LBL 12" - LBL 34" FLOORBEAM UPPER CHORD FOUND CORROSION.  CORROSION BLEND OUT 0.065" BY 2" BY 3" EXCEED SRM 53-10-01 FIG 1 LIMITS, COCKPIT BS 360 LBL 4" TO LBL 42" FLOORBEAM UPPER CHORD REPAIRED IAW SRM 53-10-07 FIG 23.

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